Comdial Dsu II Installation Manual
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Be sure that all of the ground connections are without splices and are visible for inspection and maintenance. Tag all of the ground connections with a sign that reads:Do Not Remove Or Disconnect. If you install expansion modules on the base cabinet, attach at least a #10 or #12 insulated, solid copper wire between the frame ground stud on the expansion module(s) to the frame ground stud on the base cabinet. Remember, if spare conductors exist in the cables that run between the stations and the 66M-xx connector blocks, it is good practice to connect them to earth ground. Doing this may help prevent them from introducing radio frequency and/or AC interference into the system. Also remember that it is good practice to disconnect any unused station jacks from the connector block and ground that wiring to earth ground as well. Typical Earth Ground (see text)Frame Ground Stud DSU212 #10 or #12 Insulated, Solid Copper Grounding Wire Grounding The System DSU II Digital Telephone System IMI66–132 Installing The DSU II Digital Telephone System 2 – 11
2.4 Connecting The Lines The line terminations for the common equipment cabinet are standard modular plug/jack connections. Line configuration must be loop start only. Each modular jack provides termination for two lines. Modular line jacks 1 and 2 also provide termination for an auxiliary pair in addition to the two outside lines. The outside line termination can be a type 66M-xx connector block or individual 6-position modular jacks. The line cord that is routed between the outside line termination and the common equipment termination should be twisted-pair wiring. The J0408, J0816 and J1632 common equipment supports the installation of up to 4, 8, or 16 lines, respectively. Add-on expansion modules are available to expand the line capacity of the systems. 4-Line, 8-Station Base Unit Lines 3 & 4, Aux. Line 4 Lines 1 & 2, Aux. Line 2 Grounding Terminal Line Jacks 1 & 2, Aux. Line 2 Line Jacks 3 & 4, Aux. Line 4 Line Jacks 5 & 6 Line Jacks 7 & 8 8-Line, 16-Station Base Unit 16-Line, 32-Station Base Unit Lines 1 & 2, Aux 1 (Line 2) Lines 3 & 4, Aux 2 (Line 4) Lines 5 & 6 Lines 7 & 8 Line 9 & 10 Line 11 & 12 Line 13 & 14 Line 15 & 16 DSU219 Grounding Terminal Grounding Terminal Locating The Line Connections IMI66–132 DSU II Digital Telephone System 2 – 12 Installing The DSU II Digital Telephone System
RING 2
RING 1
TIP 1
TIP 2
RING 4
RING 3
TIP 3
TIP 4
RING 6
RING 5
TIP 5
TIP 6
RING 8
RING 7
TIP 7
TIP 8CO/PBX
LINES
Line Terminations
Type 66M-XX
Connector Block
or
Individual 6-Position
Modular jacks
{
{
{
{
(Typical 8-Line, 16-Station
Base Unit Shown)
CAJS083
6-Wire Twisted
Pair Cable
6
5
4
3
2
1
No Conn.
Ring 2
Ring 1
Tip 1
Tip 2
No. Conn.
6
5
4
3
2
1
Aux. Ring
Ring 2
Ring 1
Tip 1
Tip 2
Aux. Tip
Pin designation for
Line Jacks 1 and 2Pin designation for
Line Jacks 5 and 6
Detailing The CO Interface
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 13
2.4.1 Detailing The Line Connections The table on the next page shows the line connection details for all three of the common equipment base units. Jacks one and two are the same for all three cabinets, jacks three and four are the same for both the J0816 and J1632 cabinets, and jacks five through eight are only available on the J1632 cabinet. 2.4.2 Reassigning The Line Ports After you have initially connected a line to a particular line port and programmed its attributes (or left it with the system defaulted values), you can reassign the line and its attributes to a different port by programming action if you wish. Refer to Chapter 3 for the line to line port reassignment programming details. CAUTION While this feature allows you to make adds, moves, and changes without relocating the line wiring, it is not a substitute for correct wiring and should not be used as such. Be sure to record any reassignments that you make. 2.4.3 Protecting The Lines Transient voltage spikes, if induced onto CO or CENTREX lines, can travel through the cable and into the common equipment. The telephone company offers basic protection against this condition but it is usually designed to protect the central office circuits. While it will also provide some protection to the common equipment, it should not be relied upon for total protection. To help ensure that external over-voltage surges do not damage the system, the manufacturer recommends that gas discharge tubes, or similar primary protection devices, be installed and properly grounded on all lines (a selection of solid-state protection devices that are useful for this purpose is available from ITW Linx, Elk Grove Village, Illinois 60007). IMI66–132 DSU II Digital Telephone System 2 – 14 Installing The DSU II Digital Telephone System
Understanding The Line Connection Details Common Equipment Type Line Jack Pin No. Connection Telephone Number J0408, J0816, and J163211 Auxiliary 1 (Line 2) Tip 2 Line 2 Tip 3 Line 1 Tip 4 Line 1 Ring 5 Line 2 Ring 6 Auxiliary 1 (Line 2) Ring 21 Auxiliary 2 (Line 4) Tip 2 Line 4 Tip 3 Line 3 Tip 4 Line 3 Ring 5 Line 4 Ring 6 Auxiliary 2 (Line 4) Ring J0816 and J163231 No Connection 2 Line 6 Tip 3 Line 5 Tip 4 Line 5 Ring 5 Line 6 Ring 6 No Connection 41 No Connection 2 Line 8 Tip 3 Line 7 Tip 4 Line 7 Ring 5 Line 8 Ring 6 No Connection J163251 No Connection 2 Line 10 Tip 3 Line 9 Tip 4 Line 9 Ring 5 Line 10 Ring 6 No Connection 61 No Connection 2 Line 12 Tip 3 Line 11 Tip 4 Line 11 Ring 5 Line 12 Ring 6 No Connection 71 No Connection 2 Line 14 Tip 3 Line 13 Tip 4 Line 13 Ring 5 Line 14 Ring 6 No Connection 81 No Connection 2 Line 16 Tip 3 Line 15 Tip 4 Line 15 Ring 5 Line 16 Ring 6 No Connection DSU II Digital Telephone System IMI66–132 Installing The DSU II Digital Telephone System 2 – 15
2.5 Connecting The Stations The DSU II digital telephone system supports the operation of proprietary Comdial telephones. The J0408, J0816 and J1632 common equipment supports the installation of up to eight, 16, or 32 telephones, respectively. Add-on expansion modules are available to expand the station capacity of the systems. You can add one expansion module to the J0408, and two expansion modules to the J0816 and J1632. The JM408 expansion module provides interface for eight proprietary stations (plus interface for four lines) while the JM008 expansion module provides interface for eight industry-standard devices. Connections between the common equipment and the stations are typically via type 66M-xx connector blocks which are cable connected to the common equipment’s 50–pin male connector. The connector block is, in turn, wired to modular jacks that accept the modular line cord connected between it and the telephones. The maximum distance allowed from the common equipment to the stations is per the following list: ·Multiline Telephones—1000 feet using #24 gauge, twisted-pair cable or 2000 feet using #22 gauge cable When installing the system telephones keep in mind that each station port supports only one proprietary telephone and the system does not allow you to bridge two stations to a single modular jack. Alwaysroute station wiring a minimum of 12 inches from any other parallel wires or electrical devices. If electrical noise or RF energy is at a high level, you may need to use shielded cable with the shield connected to the cabinet ground lug. IMI66–132 DSU II Digital Telephone System 2 – 16 Installing The DSU II Digital Telephone System
2.5.1 Grounding The Unused Station Cables Remember, if spare conductors exist in the cables that run between the stations and the 66M-xx connector blocks, it is good practice to connect them to earth ground. Doing this may help prevent them from introducing radio frequency and/or AC interference into the system. Also remember that it is good practice to disconnect any unused station jacks from the connector block and ground that wiring to earth ground as well. Remove insulation and twist together all spare wires at the wall outlet. Ground the wires at the 66M-xx to the common equipment cabinet ground lug. 2.5.2 Relocating The Stations The Comdial proprietary telephones identify themselves to the system when you install them. The system assigns an extension number and all other programmable attributes to station ports as a default that you can reprogram as needed. Plus, you can use programming action to reassign attributes of one station port to a different station port if you wish. Refer to the automatic station relocation programming procedure and the station-to-station programming procedure found in Chapter 3. NOTE: The system will not allow you to relocate the station 10 to station port 10 assignment. CAUTION While this feature allows you to make adds, moves, and changes without relocating the station wiring, it is not a substitute for correct wiring and should not be used as such. Be sure to record any reassignments that you make. 2.5.3 Installing The Cable Clips Each cabinet-mounted 50-pin male connector is equipped with a retaining clip. This clip is designed to secure the mated connection once it is made. The clip does this by snapping into a slot on the cable-mounted connector when it is pressed together with the cabinet-mounted connector. This retaining clip must be pulled back slightly to unsnap it before the connectors can be separated. DSU II Digital Telephone System IMI66–132 Installing The DSU II Digital Telephone System 2 – 17
16-Line, 32-Station Base Unit Stations 10-25 Stations 26-41Power Fail Station (pins 3 & 4) Grounding Terminal 4-Line, 8-Station Base Unit Station 10-17, Power Fail Station Grounding Terminal Station 10-25 Power Fail Station Grounding Terminal 8-Line, 16-Station Base Unit DSU220DSU220 Locating The Station Connections IMI66–132 DSU II Digital Telephone System 2 – 18 Installing The DSU II Digital Telephone System
2.5.4 Connecting Stations To The J0408 This table shows the color-coded connections for a J0408 common equipment cabinet. Connecting Stations To The J0408 Common Equipment Cabinet 25-Pair Connections Two-Wire Connections Station Connections Wire Color Pair Pin No.Clip Term.Pair Wire Color Station Location White-Blue 126 1 Signal PathGreen 10 Blue-White 1 2 Red White-Orange 227 3 Signal PathGreen 11 Orange-White 2 4 Red White-Green 328 5 Signal PathGreen 12 Green-White 3 6 Red White-Brown 429 7 Signal PathGreen 13 Brown-White 4 8 Red White-Slate 530 9 Signal PathGreen 14 Slate-White 5 10 Red Red-Blue 631 11 Signal PathGreen 15 Blue-Red 6 12 Red Red-Orange 732 13 Signal PathGreen 16 Orange-Red 7 14 Red Red-Green 833 15 Signal PathGreen 17 Green-Red 8 16 Red Red-Brown 934 17 Brown-Red 9 18 Red-Slate 1035 19 Slate-Red 10 20 Black-Blue 1136 21 Blue-Black 11 22 Black-Orange 1237 23 Orange-Black 12 24 Black-Green 1338 25 Green-Black 13 26 Black-Brown 1439 27 Brown-Black 14 28 Black-Slate 1540 29 Slate-Black 15 30 Yellow-Blue 1641 31 Blue-Yellow 16 32 Yellow-Orange 1742 33 Orange-Yellow 17 34 Yellow-Green 1843 35 Green-Yellow 18 36 Yellow-Brown 1944 37 Brown-Yellow 19 38 Yellow-Slate 2045 39 Slate-Yellow 20 40 Violet-Blue 2146 41 Blue-Violet 21 42 Violet-Orange 2247 43 Orange-Violet 22 44 Violet-Green 2348 45 Common Audible Green-Violet 23 46 Violet-Brown 2449 47 Station 17 Audible Brown-Violet 24 48 Violet-Slate 2550 49 Power Fail Station Slate-Violet 25 50 DSU II Digital Telephone System IMI66–132 Installing The DSU II Digital Telephone System 2 – 19
2.5.5 Connecting Stations To The J0816 This table shows the color-coded connections for a J0816 common equipment cabinet. Connecting Stations To The J0816 Common Equipment Cabinet 25-Pair Connections Two-Wire Connections Station Connections Wire Color PairPin No.Clip Term.Pair Wire Color Station Location White-Blue 126 1 Signal PathGreen 10 Blue-White 1 2 Red White-Orange 227 3 Signal PathGreen 11 Orange-White 2 4 Red White-Green 328 5 Signal PathGreen 12 Green-White 3 6 Red White-Brown 429 7 Signal PathGreen 13 Brown-White 4 8 Red White-Slate 530 9 Signal PathGreen 14 Slate-White 5 10 Red Red-Blue 631 11 Signal PathGreen 15 Blue-Red 6 12 Red Red-Orange 732 13 Signal PathGreen 16 Orange-Red 7 14 Red Red-Green 833 15 Signal PathGreen 17 Green-Red 8 16 Red Red-Brown 934 17 Signal PathGreen 18 Brown-Red 9 18 Red Red-Slate 1035 19 Signal PathGreen 19 Slate-Red 10 20 Red Black-Blue 1136 21 Signal PathGreen 20 Blue-Black 11 22 Red Black-Orange 12 37 23 Signal PathGreen 21 Orange-Black 12 24 Red Black-Green 13 38 25 Signal PathGreen 22 Green-Black 13 26 Red Black-Brown 14 39 27 Signal PathGreen 23 Brown-Black 14 28 Red Black-Slate 15 40 29 Signal PathGreen 24 Slate-Black 15 30 Red Yellow-Blue 16 41 31 Signal PathGreen 25 Blue-Yellow 16 32 Red Yellow-Orange 17 42 33 Orange-Yellow 17 34 Yellow-Green 1843 35 Green-Yellow 18 36 Yellow-Brown 1944 37 Brown-Yellow 19 38 Yellow-Slate 2045 39 Slate-Yellow 20 40 Violet-Blue 2146 41 Blue-Violet 21 42 Violet-Orange 2247 43 Orange-Violet 22 44 Violet-Green 2348 45 Common Audible Green-Violet 23 46 Violet-Brown 2449 47 Station 17 Audible Brown-Violet 24 48 Violet-Slate 2550 49 Power Fail Station Slate-Violet 25 50 IMI66–132 DSU II Digital Telephone System 2 – 20 Installing The DSU II Digital Telephone System