Trillium Panther 306 Technical Service Manual

							Technical 
Service 
Manual Operating 
Instructions 
. . ,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Function i User Action i Set/System Response 
OPX Procedures 
[continued from previous page] 
If optional external music source is con- 
nected, outside party will hear 
background music while-on hold. 4. To place an outside call on hold: i . . . 
l Press hookswitch temporarily. You 
may now hang up. 
5. To retrieve an outside call that you 
placed on hold 
- 
before reminder sig- 
nal occurs: 
If so programmed, Hold Recall Time 
feature sounds reminder signal 
afler call 
has been on hold for program-selected 
; l If handset is in its cradle, lift it up; 
period*: when handset is in cradle, OPX 
! press hookswitch temporarily. 
reminder signal is 4 bursts of ringing, 
i 
repeated every 10 seconds; when hand- i l If handset is already lifted, press 
set is lifted, OPX reminder signal is 
! hookswitch temporarily. 
double beep, repeated every 60 seconds. f 
Many OPX procedures - such as plac- i 
ing calls on hold or retrieving calls you 
; 6. To retrieve an outside call that you 
placed on hold - involve the hook- 
i placed on hold - after reminder signal 
switch. Holding the hookswitch down 
i occm: 
too long will result in an undesired ter- ! 
mination of a call; holding it down for i l 
too short a time will not produced the ! 
desired (or any other) effect. Practice i 
using the hookswitch so that you can ; l 
hold it down for the proper length of f 
time. 
. 
[continued on next page] If handset is in its cradle, lift it up. 
If your are on an outside call: 
l . . . 
l * Press hookswitch temporarily and 
hang up. l * Current outside party is placed on 
hold, and your set rings. 
l * Lift handset in response to ringing 
of reminder signal. l . Connection with previous party 
placed on hold is re-established. 
. 
. . . Broken tone is heard, followed by 
continuous tone; outside party is 
placed on hold. 
Connection with outside party 
placed on hold is r-e-established. 
Connection with outside party 
placed on hold is r-e-established; ex- 
isting outside party, if any, is placed 
on hold 
Connection with calling party placed 
is established. 
If your are on an inside call (or an 
i l . . . 
outside call you have nearly i 
completed): 
l . Hang up handset. 
l * Lift handset in response to ringing l * Connection with previous party 
of reminder signal. 
placed on hold is reestablished. 
-. 
l * Connection with current party is 
terminated, and your set rings. 
* Options include no reminder - or reminder after 1.5 minutes, 3 minutes, or 3 minutes with caU release after 5 minutes. 
TRILLIUM 
Telephone 
Systems Panther 306 
Page G-l 1  
						

							Operating 
Instructions Technical 
Service 
Manual 
Function i User Action 
OPX Procedures 
[continued from previous page] 
As is the case with Panther Sets, outside 
lines ring on your OPX-connected set in 
accordance with Ringing Assignment 
feature programming. If more than one 
such outside line has an incoming call 
for your set, a call on the last used out- 
c side line will be answered fmt - or on 
the lowest-numbered outside line. 
To place both outside parties on an ex- 
ternal conference call on hold, press 
your ho&switch temporarily. To re- 
trieve 
borh parties on hold, press your 
hookswitch again. (You cannot go di- 
rectly back to 2-party call from a 3- 
party conference call.) 
During an attempt to form any 3-party 
confemuce call, if the third party does 
not answer, siniply hang up, lift hand- 
set, and press hookswitch to retrieve the 
original party placed on hold. ! 7. To answer any call while handset is 
: incradle: 
i l Lift handset. 
8. To answer an incoming call while 
busy on another call: 
. 
. 
9. 
. 
. 
. 
. Press hookswitch temporarily and 
hang up (alternatively, you can ter- 
minate your current call instead of 
placing it on hold by simply hanging 
UP). 
Lift handset in response to ringing. 
To form an external conference call: 
While on outside call, press hook- 
switch temporarily. 
Press 
l and dial 2digit (01-03) num- 
ber of desired outside line. 
Dial desired outside third party’s tel- 
ephone number. 
When third party answers, press 
hookswitch temporarily. 
10. To form an internal conference 
: . 
. 
. 
. . 
[continued on next page] hookswitch temporarily. : established 
. . . . . . . . . . . . . . . . . . P “:~.;.:‘;::“.::“:‘“:::::::“:::::::”’--..‘..... - . . . . . . . . . . . . . . . . . . . . . . . ..-........... “..._I . . . . . . . . . . . - . . . 
.* . . . . . . . . . . . . . . . - . - . . .._............._...-_ 
-e..-...... . . . . . . . . . . . . . . . . . . . . . . . . . . ..“._..-.... . . . . . ..- _._..“__.” ._....... ,’ 
Panther 306 TRILLIUM L,,:. 
Page G-12 
Telephone 
Systems 
. . . . . . . . . . . . . . . . . . . - 
. . . . . . . . . . . . . . . . . . . - ~ :::::::: I’ :::::::::::::: 
:::::: ::::: :::::::::::‘-‘“:::::::::::::::::””’........... * . . . . * . . . . . . . . . . . . . . -.e..- . . . . . --- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . - . . .._.......................... 
. . . . . . . . . . . . . a... . . . . . . . . . . . . . . . . . . . ...” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ..,........-...__.............. . . . . . . . . . . . . . 
Set&stem Response 
l You are connected to calling party. 
Double beep is heard through handset. 
While on inside calI, press hook- 
j . Current inside party is placed on 
switch temporarily. 
hold; continuous tone is heard. 
Dial 2-digit (10-H) number of de- 
! l 
sired station. 
When third party answers, press 
i l 
If hookswitch pressed, current out- 
side party is placed on hold; your set 
rings. 
Connection with calling party is 
established 
Current outside party is placed on 
hold; continuous tone is heard. 
Outside dial tone is heard; if desired 
line is unavailable, broken tone is 
heard. 
Call is made to desired outside third 
party. 
3-party external conference call is 
established 
Call is made to desired station: if in- 
valid or unassigned number is 
dialed, broken tone is heard; if 
dialed station is busy, slow broken 
tone is heard 
3-party internal conference call is  
						

							Technical 
Service 
, Manual Operating 
Instructions 
9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..__ _ . . . . . . . ..__._................................... _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . ..................__ __ ___.......,_..__._..............., ,..............,................,.......... __ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................................................. ” ....... .A..._. ...............,................., 
. . 
Function i User Action i Set/System Response 
OPX Procedures 11. To form a mixed conference call: ! . . . 
[continued from previous page] l While on outside call, press hook- i l Current outside party is placed on 
switch temporarily. 
hold; continuous tone is heard. 
Just like with regular Panther Sets, Do 
Not Disturb prevents all calls from ring- 
ing at your station. -Anyone trying to 
call will receive broken tone. When you 
pick up your handset, you will hear a 
broken tone followed by a continuous 
tone while Do Not Disturb is activated 
at your set. 
l - Dial Z-digit (10-15) number of de- i l 
. 
sired station. 
When third party answers, press 
i l 3-party mixed conference call is 
hookswitch temporarily. 
established. 
[continued on next page] 12. Toactivate 
DoNot Disturb: i . . . 
: 
l Lifthandset . . 
l Dial#l. . . 
13. To cancel Do Not Disturb: 
l Lifthandset. 
l Dial#l. 
: . . . 
. . 
. 
l 
14. To make a zone page: : . . . 
l Lift handset. . . Continuous tone is heard. 
l Dial # plus desired 2-digit zone f l 
number (51 to 56 - or 50 for all i 
At both calling and called sta- 
tions,double tone is heard (triple 
zones). 
tone if all zones paged). 
l Make your announcement. . . 
CaIJ is made to desired station: if in- 
valid on unassigned number is 
dialed, broken tone is heard: if 
dialed station is busy, slow broken 
tone is heard 
Continuous tone is heard. 
Tone stops, and Do Not Disturb is 
activated. 
Continuous tone is heard 
Tone stops, and Do Not Disturb is 
cancelled_ 
Announcement is heard by all called 
stations. 
::::::::::::::::: z :::::;:::::::;: :::::::::“““‘::::::::. ...................... ................................................................................................................................................................... I .. -4 . . ... .. ..“. .......................... ... ........... . . ..................................................... ;; ....................... ............... . . ..... ............ *n ..................................................................... I 
1 TRILLIUM 
Telephone 
Systems Panther 306 
Page G-13  
						

							. . . . _ . . . . . . . . . ..__.............. - 
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Operating Technical 
Instructions 
Service 
Manual .- 
. ..__.._..._...._.. _ .._.........._._ _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . . . . . . - . . . . . . . . . . . . . . . 
. _......-........ - . . . . ....................................._........................ _.. 
................ _._ . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . .._...........................................” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - . . . . .._........” . . . . - . . . . . . . . . . . - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....... _ ............... _. 
Function i User Action 
OPX Procedures j 15. To activate busy override: 
[continued from previous page1 
j 9 When busy station (slow broken 
: 
Busy override has no effect on a Set j 
tone) is encountered_ press AI. 
that has activated Do Not Disturb. 
1 16. To respond to busy override signal: 
In any event, responder may ignore 
i 
busy override signals. 
i l F’ress hookswitchtemporarily. 
j 
l When finished with busy override 
: party, hang up, lift handset, and 
: press hookswitch temporarily. 
f 17. To retrieve an outside call that an- 
; other station placed on hold: 
. 
. . 
Typically, the other station calls you 
and lets you know which outside line 
thecallison 
. - and then hangs up. 
After receiving notification from 
i l 
other station --but without hanging f 
up handset - press hookswitch for i 
at Zeart I seconff, 
then release it. : 
. . 
Dial tone is heard. 
Dial tone stops, and you are connect- 
ed with the party on hold. 
Set/System Response 
. . . 
l Busy station hears three ringing bu- 
rsts every time you press #. 
While on a call, three beeps are heard 
(and repeat every 60 seconds that cur- 
rent party remains on line). 
l Current party is placed on hold, and 
you are connected to party activating 
busy override signal. 
l Connection with party on hold is re- 
established. 
Dial ** and the indicated line number 
i 
(01 to 03). 
(To put this party on hold again, 
press hookswitch only temporarily; 
subsequently, to retrieve this party 
form the second hold, press hook- 
switch temporarily again.) 
[end of OPX procedures] 
Outgoing Call 
i [Non-handsfree] Lift handset, and press i Dial tone is heard, and selected line in- 
; desired line key. i dicam WINKS slowly. 
In handsfree operation, pressing 
l (as i 
first entry in telephone number se- i lHandsfree1 Press l or desired line key. i Dial tone is heard, and selected line in- 
quence) automatically selects last 
f -. : dicator WINKS slowly. 
outside line used at station making call. 
i 
; 
Dial desired outside number. : CalJ is made to desired outside party. 
Panther 306 
Page G-14 TRILLIUM 
Telephone 
Systems 
_I 
>  
						

							Technical 
Service 
, Manual Operating 
Instructions 
/j :::::::::::::::::::::” ..::: :::.::::‘.:::: ::_ =::::: :::: ::::::::::‘.::::::::::: :::::::::’ . . . . . . . . . . . . .._................................................................................................................................................. _ ._.._......_....___...... 
. . . . . . . . . . . . . . -...* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..-........................................ ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . ~ . ....... 
Function f User Action i Set/System Response 
Private Speed Calls 
If auto hold is activated (see Auto Hold 
feature), 
Speed must be pressed b&x 
pressing desired speed dial key - oth- 
erwise, outside line will be placed on 
hold, and speed call key will have no 
effect. 
Room Monitoring 
won-handsf%] Lift handset, and press 
Dial tone is heard, and selected line in- 
desired line key. 
dicator WINKS slowly. 
lJ!LmLsfree] Press * or desired line key. 
For first 5 private speed call numbers, 
press desired speed call key (11 to 15) 
- press Speed first if auto hold is acti- 
vated; for last 6 private speed call 
numbers dial desired speed call code 
(05 to 10). 
For this procedure to work properly, the 
monitoring Set must have its micro- 
phone turned off, and the monitored Set 
must have its microphone turned on. 
Zone Paging (to a specific zone) 
Also, see Intercom 
Paging (to all 
stations) Dial tone is heard, and selected line in- 
dicator WINKS slowly. 
Desired number is dialed automatically. 
L 
At monitoring station, press station 
lect key for station to be monitored. se- : 
To cancel room monitoring, press 
Speaker at monitoring station. At both sets, single tone is heard, and 
Intercom indicator WINKS slowly; 
sounds made in vicinity of monitored 
station are heard over monitoring sta- 
tion’s speaker. 
Room monitoring is cancelled, and 
Intercom indicator goes OFF at both 
stations. 
won-handsfree] Lift handset, and press 
Intercom. 
~clstiee] Press Intercom 
Continuous tone is heard, and 
Intercom indicator WINKS slowly. 
Continuous tone is heard, and 
Intercom indicator WINKS slowly. 
stations.  Dial the desired zone number (51 to 
i 
56). Triple tone is heard at calling and at all 
called stations. 
Make your announcement. 
Announcement is heard at all called 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
.,...........................,............................. *.a . . . . . . . . . . . . . . . . . . 
> . . . . . . . . . . . . . . . . . . . . .._................::::~::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::~:::::::::::::~:::~~:::::::::::::::::::::::::::::::::::;:::::::::::: 
TRILLIUM 
Telephone Panther 306 
Systems Page G-15  
						

							Operating . 
instructions 
Technical 
Service 
Manual ..-. _ 
Function j User Action i Set&stem Response 
Zone Paging (to all zones) ; To issue an all zone page: . . . . 
Also, see 
Intercom Paging (to all i Lift handset, and press intercom -or i Continuous tone is heard, and 
stations) i yaw own station select key. 
I Intercom indicator WINKS slowly. 
i Dial!% J Double tone is heard at calling and at all 
! called stations. 
: Make your announcement. : Announcement is heard at all called 
; stations. 
i To respond to an ail zone page: i . . . 
i 
[Non-hand&eel List handset, and dial i You are co~&ted to paging party. 
: l 1. 
: ~dstke] Dial ‘1. : You are connected to paging party. 
........................... . . . . ............................. -. ............... . I.................“. ....................... 
.......... “” .. . .... “...... .  .......... ““. ......... ..-- ... . .... ......... . 
............. “” ..I.. ... . 
... ..“. ... -..:::::::::“:::“:J::::::::::::::::”::::::::::::~::~:::::::::::~::::::::~:~::::~::::~::::::~:~~~~~::~~.::: : 
Panther 306 TRILLIUM ./ 
Page G-16 
Telephone 
Systems 
. . 
... ......................... _. .......... _. 
...... . . . . . ::::~~:::::::::::::::~:::::::~::~~.--. ............... “... ........ . ... ....... ..“. ......... .. ..I... . . ........ . . .... ..“I”. ....... . ............ ................ 
.I ..I.. .. “...” ..“. .............. . 
.. . ..... .. . ................... 
............................ ..“. .......... . 
. ..” .................. 
..“. . 
. 
.... . ....... 
. .... . ..... . . 
.... .............. 
..“. “....._ 
.. .._ ..... _. .......... ..“. ...........  
						

							Technical 
Service Trouble- 
‘9 Manual 
shooting 
. . . . . . . . . . . . . . . . . . . . . . . . . . _...C..... 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L 
..,..:::::::::‘-::::::::::::::::::::::::::::::::::::::::::::::::~:::::::::::::::::::~:::::::::::::::::::::::::::;:~:::::::::::::::::::::::~::::::::::::::~~:::::::;::::::::::::::::::::::::::::::~:::::::::~~:~:::::::::::::::~ 
Problem Probable Cause i Probable Solution 
No dial tone, but indicators go ON, and Reversed tip and ring on intercom i Correct station wiring (refer to Station 
intercom tone is heard at your Set 
(data) Pair 
f Wiring Table on page D-3). 
When 
Intercom pressed, continuous 
tone not heard and 
Intercom indicator 
stays OFF a. Incorrect station wiring 
i a. Make sure station wiring is correct 
i (refer to Station Wiring Table on page 
i D-3): check for opens, shorts, wire re- 
: versals, and incorrect color code 
: matches. 
b. Improperly connected modular cord 
i b. Make sure 4-wire modular cord is 
i plugged securely into Set and into sta- 
i tion wiring jack @-wire cord is used at 
i stations with external amplifier - see 
i page D-8). 
c. h4DF connection 
; c. Check wiring of 66-b&k; again, 
; refer to Station Wiring Table on page 
i D-3. 
; d. Static discharge i d. Disconnect modular cord from Set 
i and re-connect (this action resets the 
i Set); if problem persists, remove and re- 
: apply power to KSU (this action resets 
f theKSU). 
j e. Loss of power to KSU 
i e. Verify that KSU is connected to un- 
f switched outlet; check that the ground 
i wire is still connected to true earth 
i ground; make sure breaker for outlet is 
i not tripped; and, if using a surge protec- 
: tar, make sure that the surge protector is 
: operational. 
At all Sets, when line key is pressed, the 
i Faulty Central Office line connection to [ Make sure 4-conductor modular cord 
indicator lights but no dial tone is 
i theKSU. ; between RI-14 jack (where incoming 
heard. 
: line terminates) and KSU is good and is 
i properly installed. (If you are using 
i Power Fail Transfer Units, check all 
: connections between incoming lines, 
: Power Fail Transfer Units, and KSU - 
; refer to page D-7 and see the diagram 
; on page E-4.) If problem persists, noti- 
i fy your local telephone company. 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...” . . . . . . . . * . . . . . . . ::::::::::::::::::::::::: ::“::::::::::::::::::::::::‘..................................... * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . _ . . . . . . . . . . . . . . . . . . . ....... . . . . * . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .* . . . . . . . . . . .* . . . . . . . . . . . . . . . ., . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .............. .. ....... * ............. 
.I TRILLIUM 
Telephone Panther 306 
Systems Page H-l  
						

							Trouble- 
shooting Technical 
Serviw 
ManuT 
.~ ‘.! 
::;:::::::::: y::::;:::::::::::- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . __ . . . . . _ . . . . . . . . . . . . . . . .._.._ _ _.........._... _ ._..... _.“...__ 
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I.. . . . . . . . . . . , . . . . . . ~..~“._.“._ . . . . . . ~ . . . . . ““.,_ . .._ 
. . . . _.~...._.._, ..‘“:..“:-“““‘” ~,, 
Problem 
KSU does not retain feature 
programming 
Out@ie calls cannot be made Probable Cause 
KSU BATTERY switch is OFF 
a. Error in tone/rotary programming 
b. Incorrectly programmed call 
restrictions Probable Solution 
Set KSU BATTERY switch to ON; re- 
program system as necessary. 
a. Verify that the Tone or Pulse and 
Telephone or 
PBX features (program 
code 5xX0) are properly programmed 
(see Section F). 
b. Verify correct 
programming for the 
Line Group Type feaame @gram code 
001 l), Digits-to-Deny featnre (program 
code 0051), Call Restrictions feature 
(program code (ZYYl). Line Group 
Assignment feature (3YYO). Line 
Grouping feature (progmrn code 6iZO), 
__ .~~ _ 
: and Flexible Call Restrict&s feature 
i (program codes 7000-7900) as appro- 
; priate (see Section F). 
Line indicator FIASHES slowly during 
i Incorrectly programmed Ringing 
an incoming call, but no ringing is 
: Assignment feature (program code 
heard 
i 2YYO) 
Background music and on-hold music a. Incorrect connector on cable from 
notbeardonanyset music source 
b. Malfunctioning music source For your Set to ring, it must be pro- 
_ 
grammed to do so by the Ringing 
Assignment feature - for each incom- 
ing line you wish to ring at your Set _, h 
/ 
(see section F). 
a. Make sure that jack is l-&inch 
phono mini-jack - not stereo or 
attenuator. 
b. Make sure music source is plugged 
in, turned on, and operating properly. 
Refer to manual supplied with music 
source equipment or call music source 
equipment manufacturer’s customer 
service. 
................ . ............................ . . .............. _. ........ .  . ..“. ... __t ........................................................................................................................................ 
. ..I .......... I ..................... ...... .......... . . ... . . . . 
......................................................... ....... ... .... ...... 
.:. . 
..... :.::::::::::‘-‘::~.:::::;:::“I’::::: 
.................................. 
Panther 306 
Page H-2 TRILLIUM 
Telephone 
Systems ./  
						

							Technical 
Service 
Manual Trouble- 
shooting 
,.......,... . . ., 
. . . . . _.” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . s . . . . . . . . :‘.... ,:::::::::::::::::::::::::::::::::::::::::::::::::~:::::::::::::: ::::: ~&-::: :::::::::::: “” :::::::::::::::::::::i ::::::: ::::::: :::: :::: :::y::: :::::::: ‘“‘::::::::: 3: . . . . . . + . . . . . . . . . . . . . * 
Problem Probable Cause i Probable Solution 
Neither Door Module is operational a. Wiring between Door Answer Unit 
and KSU 
I b. KSU not operating properly 
Individual Door Module not operating 
properly a. Check continuity of 6-conductor 
cord between DA connector on Door 
Answer Unit and DOOR connector on 
KSU. 
b. Press RESET button on KSU. 
c. Defective Door Answer Unit 
: c. Replace Door Answer Unit. 
a. Wiring between Door Module and 
Door Answer Unit a. Check continuity of 2-wire cable be- 
tween Door Module and Door Answer 
Unit 
b. Defective Door Module 
b. Replace Door Module. 
c. Defective Door Answer Unit 
2-wire set or other device connected to a. Station wiring defective or KSU 
OPX unit not working properly working improperly 
f 
b. Defective OPX unit 
c. Defective ‘L-wire device c. Replace Door Answer Unit. 
a. Temporarily install Panther 306 Set 
at OPX unit station jack: if installed Set 
doesn’t work properly, check station 
wiring and/or reset KSU. Re-install 
OPX unit at station jack once trouble is 
cleared 
b. Replace OPX unit. 
c. Make sure 2-wire device is plugged 
in, turned on, and operating properly. 
Refer to manual supplied with 2-wire 
device or call 2-wire device manufac- 
ture& customer service. 
,’ TRILLIUM I 
 
Telephone 
Systems Panther 306 
Page H-3