Trillium Panther 2064 Technical Service Manual
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Technical Service Manual Table of Contents :: :::::::::::::: :::: :::: y.:.; :::::::::::::::::: ::::::: ::::::::::::: :::::: ::::::::::::::::::::: :‘.:::::::::::: y:::::-:::::: . . . . . . , . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . ,, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ................ ...,. . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . m.. . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............... * ......,, . Topic Page Chapter Introduction PREFACE . . . . . . . . . . . . . . .,.,,, sI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s . . . . . . . . . . . . . . i . . . . . ~......................................,.....,...,....... Intro-1 ABOUT THIS CHAPTER.. . . .:.. . .., ,, ,......... . . . . . . . . . . . . . . . . . . ‘. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ,.,. .,.. ..Inno-1 QUICK-REFERENCE CHART.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Intro-2 Section A - FCC Requirements RADIO AND TELEVISION INTERFERENCE ...................................................................................................... A- 1 HEARING AID COMPATIBILITY ....................................................................................................................... A- 1 RESPONSIBILITIES ...... .................................................................................................................................... A-2 User Responsibilities ..................................................................................................................................... A-2 Telco Responsibilities .................................................................................................................................... A-2 Section g’- System Components STANDARD COMPONENTS., ............................................................................................................................ B- 1 One Master Key Service Unit (KSU) ............................................. .: .................................................................. B- 1 One Expander KSU. ............................................. .:. ...................................................................................... B-2 Up to Sixty-Four Telephone Sets ...................................................................................................................... B-2 Up to Twenty-Eight DSS/BLF Units., .............................................................................................................. B-3 OPTIONAL COMPONENTS., .............................................................................................................................. B-3 Up to Two Door Answer Units ........................................................................................................................ B-3 Up to Five Power Fail Transfer Units., .......................................................................... ). .................................. B-3 Up to 63 Off Premises Extension/Data Interface (OPX) unit+ .................................. ../ ........... ~‘;.;. ........................... B-4 ,One Station Message Detail Recorder (SMDR) Unit., ........... ..-. ..... . .. ;. .:. ...... .;, ........ .:. ...... ..:. ......... ..:. ......... ,: ............ B-4 SetStanhs/Wall-Mounts ............. . ...... l...................:. ... ..- ........ . ............................... .: ............... . ........ ‘.I .............. B-4 Desigrtation Cards., ........................................................................ I.. ...... .;. ........................ :. ... .;. ....................... B-5 Section C - Technical Specifications . CONNEmORS .................................................................................................................................................. C-l POWER FAIL TRANSFER UNIT CONNECTORS (Optional) ..................................................................................... c-2 SMDR UNIT (Optional) ...................................................................................................................................... C-2 ENVIRONMENTAL REQUIREMENTS ................................................................................................................ C-2 POWER REQUIREMENTS .................................................................................................................................. C-3 STATION NUMBERING PLAN.. ......................................................................................................................... C-3 SYSTEM CAPABILITIES., ................................................................................................................................. C-3 Section D - Connection Procedures STEP 1: INSTALLING THE KSU ................................................................................................................... D-l Site Preparation. ........................................................................................................................................... D-l Backboard Installation,, ................................................................................................................................ D-l System Uncrating ......................................................................................................................................... D- 1 Master KSU Installation ................................................................................................................................ D- 1 Expander KSU Installation ............................................................................................................................ D-2 TRILLIUM Telephone Systems Panther 2064 Page i
Table of Contents Technical Service Manual > ,; I Topic Page Section D - Connection Procedures (continued) - STEP2: CONNECTING INCOMING TELEPHONE LINES . . ............... ;: .................................................... . ....... :D22 Incoming Line Wiring Table (Lines 1 through 10). .............................................................................................. D-3 Incoming Line Wiring Table (Lines 11 through 20). ............................................................................................ D-4 STEP 3: INSTALLING STATION WIRING ..... . . ............................................................................................ D-6 Station Wing Table (Stations 10 through 17). ................................................................................................... D-7 Station Wiring Table (Stations 18 through 25). ................................................................................................... D-8 Station Wiring Table (Stations 26 through 33) .................................................................................................... D-9 Station Wiring Table (Stations 34 through 41). ................................................................................................. D-10 Station Wiring Table (Stations 42 through 49). ................................................................................................. D-l 1 Station Wiring Table (Stations 50 through 57) .................................................................................................. D-12 Station Wiring Table (Stations 58 through 65). ........................ . ........................................................................ D-13 Station Wiring Table (Stations 66 through 73). ................................................................................................. D-14 STEP 4: CONDUCTING THE INITIAL SYSTEM AND STATION TESTS.. ........................................................ D-15 STEP 5: CONNECTING THE BACKUP BATTERY ........................................................................................ D-15 STEP 6: CONNECTING DOOR ANSWER UNIT AND DOOR MODULES .................................................. ,:, .... D-16 Door Answer Unit Installation ........................................................ :. ............................................................ D- 16 Door Module Installation ........................................ . .................................................................................... D-16 Door Answer Unit Test.. ............................................................................................................................. D-17 STEP 7: CQNNECXING THE MUSIC SOURCE ............................................................................................. D-18 Music Connection ..................... : D-18 $ ,i . Music Test ..... :.: ..:. .................................................................................................................. .............. . ................ . .... .:,. ........... . ............ . ..... . ....... . ..... :: ... . * ...... .+ ... . ....... . ......... . ................ D;18. STEP 8: CONNECTING THE EXTERNAL PAGING EQUIPMENT.. ................ .:. ........................... .:. ................. D-19 Equipment Connection ...................................................... .: ......................................................................... D-19 Paging Test.. .......... (............. ....................................................................................................................... D-19 .. STEP 9:’ CONNECTING AN EXTERNAL LOUD BELL .............................................................................. .: .. D-20 Equipment Connection ................................................................................................................................ D-20 Loud Bell Test ....... .: .................................................................................................................................. D-20 STEP 10: CONNECTING THE OPX UNIT, ..................................................................................................... D-2 1 OPX Unit Connection,, .............................................................................................................................. D-21 OPX Unit Test ........................................................................................................................................... D-21 STEP 11: CONNJXTING THE SMDR INTERFACE UNIT ................................................................................ D-22 SMDR Interface Unit Installation., ............................................................................................................... D-22 SMDR Interface Unit Test.. ......................................................................................................................... D-22 SMDR Printout Formats .............................................................................................................................. D-22 STEP 12: CONNECTING THE POWER FAIL TRANSFER UNITS ...................................................................... D-23 Power Fail Transfer Unit Installation .............................................................................................................. D-23 Power Fail Transfer Unit Test ....................................................................................................................... D-27 STEP 13: INSTALLING AN EXTERNAL AMPLIFIER ..................................................................................... D-28 Panther 2064 Page ii TRILLIUM a -- Telephone Systems
Technical Service Manual Table of Contents ::::::::::::::::::: j: ::::,::: ~ ::::::::::::::::::::: i ~~~~.~“..“.......... _...- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -...- . . . . . . . . . . . . . . . . . . ..-................ _ . . . ..__....__..._...~..~.~..~~~~~~~~.~~. _ __.. I . .._....__. . . . . . . . . . . . . . . . . . . . . . ..~..................... :‘........ ‘ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............... _ ._......_....._._,...........-.- .._........ , . Topic Section E - System and Set Layout Page TYPICAL MASTER KSU LAYOUT DIAGRAM (Standard Components only) .................................................. . ... .._ ....... E-l TYPICAL MASTER KSU LAYOUT DIAGRAM (Standard Components bnly). .............................................................. E-2 TYPICAL SYSTEM LAYOUT DIAGRAM (Optional and External Components only). ................................................... E-3 SET LAYOUT DIAGRAM. .................................................................................................................................. E-4 SET LAYOUT. ................................................................................................................................................... E-5 DSS/BLF UNIT LAYOUT DIAG RAM. .................................................................................................................. E-6 TYPICAL POWER FAIL TRANSFER UNIT LAYOUT DIAGRAM .......................................................................... E-7 Section F - Feature Programming FEATURE CATEGORIES ...................................................................... I.. ........................................................... F-l Categories Versus Codes,, .................................................................................... : ......................................... F-l Referencing Categories to Codes.. ................................................................................................................... F-l Interrelated Features ....................................................................................................................................... F-l Feature Programming Cross-Reference Table,. .................................................................................................... F-2 SYSTEM-WIDE FEATURES ..... . . ..................................................................................... :. .................................. F4 System-Wide Feature Programming Table ......................................................................................................... F-5 INDIVIDUAL SET FEATURES .......................................................................................................................... F-10 Individual Set Feature Programming Table ...................................................................................................... F-11 INDIVIDUAL LINE FEATURES ......................................................................................................................... F-14 Individual Line Feature Programming Table ...................................................................................................... F-15 INDIVIDUALGROUP FEATURES ................................................ *, .......................................................................... F-18. IndividualGroup&at&ProgramkngTable . ..i.. ............................ .I ......... :: ..:. ....... . ........ l....‘.....:. .... :.......‘.......:. ... ‘F-19 CALL RESTRICTIONS ...................................................................................................................................... F-20 Call Restiction Feature Programming Table .. .I ......................... :. ....................................................................... F-21 Yerifying Call Restrictions. ......................................................................... :. ................................................. F-22 SPEED CALL NUMBERS.. ........................................... .: ..................................................................................... F-24 Speed Call Programming Notes.. .................................................................................................................... F-24 Common Speed Call Numbers ....................................................................................................................... F-24 Private Speed Call Numbers .......................................................................................................................... F-25 FEATURE DESCRIPTIONS ..................... :. ........................................................................................................ F-2.5 Section G - Operating Instructions OPERATING lNSTRUCTIONS TABLE.. . . . . . ., , .~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . ,. . . . .., G-l Section H - Troubleshooting TROUBLESHOOTING TABLE ,,,,,,,.,,...,.....,.,.,............1..,,.....I.....I...I.I..,~I.............I.II.......I.......,.,.,,,,,.,,.,,,,,,,.,..,,. H-l TRILLIUM Telephone Systems Panther 2064 Page iii .
Technical ’ Service Manual Chapter Introduction :!; :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: : :::::::::::::::::::::: ::::::::::::::::::I::::::::::::::::;:::::::::::::::..... . . . . . . . . . . . . . . . . . . . . . . ----*...* . . . . . . . . . . . . . . . . . -.--,..-..* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-.......................... a ..: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . y....................... a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . PREFACE . ABOUT, THIS CHAPTER. The Panther 2.064 Electronic Key Telephone System is a state-of-the-art system that incorporates sophisticated elec- tronics to meet the communications needs of today’s office and business user. It connects up to 20 outside tone or rotary telephone lines (one or two optional Door Answer Units and Door Modules may be installed reducing the number of outside lines served on a l-for-l basis) with up to 64 station Sets - which are all wired in a star configuration. The master key service unit (KSU) can handle 10 outside lines and 32 internal stations; with the expander KSU, the system can handle its full com- plement of outside lines and internal stations. Both Handsfree and Non-Ha&free Sets are available. A separate Direct Station Select/Busy Lamp Field @SS/BLF) Unit is available for use at an attendant station; it contains station select keys and indicators that show the status of all system stations. Attendant calling, common and private speed calling, call transferring, transfer ringing, door answering (with optional Door Answer Units and Door Modules), conferencing (up to 3 parties), message waiting, internal intercom paging (sta- tion-to-station; zone, and all page paging), .external ioudspeaker paging, call detail and account code recording (through an optional SMDR unit), and last number redialing . are just some of the many features offered. In addition, the Panther system is designed to allow easy in- terfacing with modems and answering devices through an optional OPX device. The fully sealed Panther 2064 Electronic Key Telephone System may be installed in either a standalone mode or be- hind a CENTREX or PBX. An optional external backup 24 V battery can be connected to each KSU in the system: the backup batteries are auto- matically brought on line in the event of a power failure, thus preventing interruptions in telephone service. Also, in the event of a total system failure, incoming lines will be transferred to standard sets if optional Power Transfer Units have been installed in the system. This chapter has also been designed specifically to enable technicians to install, operate, and maintain the Panther 2064 Electronic Key Telephone System. Information is presented in a logical order, without undue wordiness - to help the technician find, understand, and use the relevant informa- tion, quickly and easily. Therefore, for example, the Connection Procedures are sep- arated into concise steps that have a logical and necessary sequence; and reference material (Technical Specifications, Feature Programming, Operating Instructions, and Troubleshooting) is presented in a variety of easy-to-follow, visible-at-a-glance tabular formats. To acquaint yourself with this chapter, please review the Table of Contents and spend a few moments browsing through the different sections. CAUTION Panther equipment is sealed. Breaking the seal will void your warranty. If you have an installation, operation, or troubleshooting problem that you cannot solve by using thischapter (and ‘. that your dealer cannot help solve),. call TRILLIUM Customer Service at 1-800-848-2444 (inside California, call 1-800-422-7600). NOTE For your ready reference, a chart summarizing indicator signals appears on the back of this page. TRILLIUM Telephone Systems Panther 2064 Page Intro- 1
Chapter Chapter Technical Technical ’ Introduction, ’ Introduction, Service Service Manual Manual :::::::I::~:::::::::(:::::::::::::::::::::::::::::::::::::::::::~::::::::::::::::::::::::::::::::~::::::::::::::::::::::: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :::::::I::~:::::::::(:::::::::::::::::::::::::::::::::::::::::::~::::::::::::::::::::::::::::::::~::::::::::::::::::::::: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ::::: :;:; :::::i::::::::;::::l:: :::: :: :::::;:::::::::::::::::::::::::::: ::::!: :::::: . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ::::: :;:; :::::i::::::::;::::l:: :::: :: :::::;:::::::::::::::::::::::::::: ::::!: :::::: . QUICK-REFERENCE CHART * The Panther 2064 Electronic Key Telephone System lets users know what is happening .with calis and lines through a series of indicator patterns. These indications are summar- ized in the chart on this page. Specific indications are described at the appropriate places throughout the procedu- ral material in this chapter. Lii hdlcatar Action Lii stahts OFF I line ide ON I -c.w.-. . . . . ;.-.,... M,......v.... c . ..I *v. . . ..w - pw...“..,- - 1 Llnain”samm‘ -: i-1 exdtie hold a - . . . . . . . y.” . . . . . _ .I.. _ . . . . . . . . . . ..Y” . . . . . . . . . . . . . . ..- A..r.r.m - 0 1 motwstadm I Slow WINKING I - ..-- . ..! . . - (..,.,, . . ..--.......__..........-..-.! .I.. F,.ll..*l.,- - :: i-i ,: _ -: .,.,.......,....... . . . . . . . . . i.- -: . . . . . . . . . . . . . . . . ..\.....\.... i - - I - - I - / LiwinuseatyarSet Vq dor, FIASWG 1, tin, on erdusive hdd I .:,- >.,.!y..,. ..I . ..vIIU” ,,.,... . . . . -....!...:.,. . at you set; line uals- ._ _: + .+ L -I’ i- ‘ I ‘+-Y-- . ..-....-...~. - ..,. ;-y-e+-. felledbaa to y~~sei: or c&a& lo you set ~oy”SHlNG 1 , . . . . . . . ,t.!..:., ,:..!I, . . . . . 2 :- _: .: . . . . . . . . I & -; . . . .., :> &,..,.“..L ‘L -) lnmrmgd , I * ’ t * .&...-I “;..~~‘~ * I * :::::::::::::::::::::::::::::::::::::::::::::z ::::::::; :::::::::::::::; :::::::::::::::::::::::::::::::::::::::.................................................................................................................................................................. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . ..... * .........,..........,......... PQnthPl 1 cLluw/r 2064 Page .Intro-2 TRILLIUM ‘x. _ Telephone Systems
Technical Service Manual . ~-- ----- . . . . - . . . . . . . . . . . . ..._” . . . . . . . ii.. FCC Requirements, RADIO AND TELEVISION INTERFERENCE I’ WARNING HEARING AID COMPATIBILITY The Panther 2064 Elecnonic Key Telephone System generates and uses radio-frequency en- ergy and - if not installed and used in strict accordance with these instructions - may cause interference to radio and television reception. The Panther 2064 Electronic Key Telephone System has been certified to comply with the limits for a Class B com- , puting device, pursuant to Subpart J of Part 15 of the Federal Communications Commission (FCC) Rules which are de- signed to provide reasonable protection from radio and television interference in a residential installation. However there is no guarantee that interference will not occur in a particular installation. If interference is encountered, test to determine if the unit is at fault by unplugging the Key Service Unit (KSU) from the wall outlet. ‘If unplugging the KSU removes ‘the interference, try the foil lowing corrective measures, singly or .in combination, until the interference is eliminated: . Change the location or position of the indoor re- ceiving antenna of the radio or television. . Relocate the Panther 2064 Set or KSU in relation to the radio and television receivers experiencing interference. . Plug the KSU into an outlet that does not also serve radio or television sets. If further help is needed, consult your TRILLIUM dealer or an experienced radio/television technician - or refer to the FCC’s booklet, “How to Identify and Resolve Radio-TV Interference Problems.‘* It is available from the US Government Printing Office, Washington, DC 20402 (stock number 004400403454). The Panther 2064 Set is compatible for those requiring a hearing aid as defined in section 68.316, Part 68 of FCC Rules. TRILLIUM Telephone Systems
._._._....,......................................................,...................................................................................................................................... a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ _......_...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...... . . . . . . . FCC Technical Service . Requirements Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .$. . . . . . . . . . . . . . ...” . . . . . . . . . ~ . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ::::::::::::::::::::::::::,::::::::::::::::::::;:~::::;;:::~::::::::~:::::::::::::::::~:::~:::::~::~:::::~::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::~::::::::::::::::::::: , ’ RESPONSIBILITIES Telco Responsibilities The telephone company is required to give you adequate no- tice of any changes it makes in its .technical operations or procedures that may affect the compatibility or use of your Panther 2064 Electronic Key Telephone System. The FCC’s rules permit the Panther 2064 Electronic Key Telephone System to be connected to the telephone network . via a jack or jacks provided by the telephone company (telco). These jacks are not provided for coin or party lines. User Responsibilities Before connecting your Panther 2064 Electronic Key Telephone System to the telephone lines, you must contact the telephone company and provide them with the following information: . Telephone numbers of the lines to which the Panther 2064 Electronic Key Telephone System is to be connected (lines 1 through 20) . FCC Registration Number (found on the side of the Key Service Unit or KSU: the number for the Panther 2064 system - with or without the ex- pander KSU - is EBS78T-71737-KF-E) . Ringer Equivalence Number (also found on the side of the KSU: the number for the Panther 2064, with ‘or without,the expander KSU, is 33B)* i . USOC jacks required (usually one !O-conductor RI21 jack to each KSU; therefore, h~o RI21 jacks are required if the expander KSU is installed ) . Facility Interface Code (the code for the Panther 2064 Electronic Key Telephone System is 02LS2)’ l Service Code (the code for the Panther 2064 Electronic Key Telephone System is 9.OF) You also have the responsibility to disconnect a malfunc- tioning Panther 2064 Electronic Key Telephone System from the telephone lines until the cause of the malfunction- ing is identified and repaired. Otherwise, the telephone company may temporarily disconnect service. * The Canadian Department of Communications load num- ber for the Panther 2064 Electronic Key Telephone System is 16B. Panther 2064 Page A-2 TRILLIUM i. - Telephone. Systems
......................................................................................................... .................................................................................................... ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . :::::::::::::::::::::::::::::::::::::::::~:::::::::: System Components. Technical Service Manual ,......_..____...................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.y.. . . . . . . . . . . . . . . . . . . . ..a....-... ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . . .......................................................................-..................... : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..a . . . . . . . . . . . . . . . . .,..,... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....................... , One Expander KSU Part Number 90-0287 (tone/rotary) The expander (KSU for the Panther 2064 Electronic Key Telephone System can also be programmed to operate with either DTMF or rotary (pulse) signaling. The signaling on each CO line can be programmed independently. The expander KSU has one 50-pin connector on its right side (labeled CO11 to CO20) to attach ten more incoming telco CO lines (line 20 must be left vacant if a second op- tional Door Answer Unit is insta.lIed). Also on the right side of the master KSU are connectors la- beled POWER FAIL (used for the optional Power Fail Transfer Unit), and DOOR (used for the optional Door Answer Unit). Near the bottom left of the expander KSU are four 50-pin connectors, labeled STATIONS 42 TO 49,50 TO 57.58 TO 65, and 66 TO 73 that are used to connect the KSU to the station wiring main distribution frame (MDF) - and, through the MDF, to stations 42 through 73. Two connectors are available at the bottom of the expander KSU that are used to con&t it to the master KSU. The expander KSU has its own separate power cord ‘(at the top of the KSU) that plugs into a 110 V ac outlet (but only at the appropriate time; ‘see the Connection Procedures sec- tion). A separate grounding wire (12 AWG, solid copper) which connects to the top of the expander KSU must be at- tached to a ground clamp, usually on a water pipe. An input connector (labeled EXTERNAL BATTERY) for a separate 24 V dc backup battery is also provided at the top of the expander KSU. If ac power is lost, the switchover to battery power is automatic when the optional backup battery for the expander KSU is connected The unit comes a mounting bracket and four screws for in- stalling the expander KSU over (in front of) the master KSU (on the backboard). . Up to Sixty-Four Telephone Sets Part Number 90-Q288 (non-handsfree) . Ert Number 90-0225 (handsfree) Other than the handsfree operation, these two models look alike and operate identically. For example, both have an at- tractive black matte finish. Each Set’s base has twenty line select keys (labeled 1 through 20). eight dedicated function keys (labeled .Hold, Flash/Cancel, Conference, Intercom, Redial, Speed, Speaker, and Mic.on/off) and a tone dial keypad The line keys, the Intercom key, and the Mic.on/off key have accompanying status indicators. Finally, the base has a speaker volume control (a sliding ad- justment) and a ringer control switch (a 3-position switch, for low, medium, and high volume ringing). ifs ,, .’ Each Set also includes a telephone handset and two .modular ’ cords - a 4;conductor, coiled cord for connecting the hand- set to the Set, and a 4-conductor modular cord for. connecting the Set to the station wiring jack. Panther 2064 Page B-2 TRILLIUM t _ Telephone Systems