Comdial Dsu II Digital Telephone System Instructions Manual

							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 
						

							2.5.6 Connecting Stations To The J1632
The following two tables show the color-coded connections for a J1632 common equipment
cabinet.
Connecting Stations To J1 On The J1632 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
1237 23
Signal PathGreen
21
Orange-Black 12 24 Red
Black-Green
1338 25
Signal PathGreen
22
Green-Black 13 26 Red
Black-Brown
1439 27
Signal PathGreen
23
Brown-Black 14 28 Red
Black-Slate
1540 29
Signal PathGreen
24
Slate-Black 15 30 Red
Yellow-Blue
1641 31
Signal PathGreen
25
Blue-Yellow 16 32 Red
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
Green-Violet 23 46
Violet-Brown
2449 47
Brown-Violet 24 48
Violet-Slate
2550 49
Slate-Violet 25 50
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 21 
						

							Connecting Stations To J2 On The J1632 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
26
Blue-White 1 2 Red
White-Orange
227 3
Signal PathGreen
27
Orange-White 2 4 Red
White-Green
328 5
Signal PathGreen
28
Green-White 3 6 Red
White-Brown
429 7
Signal PathGreen
29
Brown-White 4 8 Red
White-Slate
530 9
Signal PathGreen
30
Slate-White 5 10 Red
Red-Blue
631 11
Signal PathGreen
31
Blue-Red 6 12 Red
Red-Orange
732 13
Signal PathGreen
32
Orange-Red 7 14 Red
Red-Green
833 15
Signal PathGreen
33
Green-Red 8 16 Red
Red-Brown
934 17
Signal PathGreen
34
Brown-Red 9 18 Red
Red-Slate
1035 19
Signal PathGreen
35
Slate-Red 10 20 Red
Black-Blue
1136 21
Signal PathGreen
36
Blue-Black 11 22 Red
Black-Orange
1237 23
Signal PathGreen
37
Orange-Black 12 24 Red
Black-Green
1338 25
Signal PathGreen
38
Green-Black 13 26 Red
Black-Brown
1439 27
Signal PathGreen
39
Brown-Black 14 28 Red
Black-Slate
1540 29
Signal PathGreen
40
Slate-Black 15 30 Red
Yellow-Blue
1641 31
Signal PathGreen
41
Blue-Yellow 16 32 Red
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
Green-Violet 23 46
Violet-Brown
2449 47
Brown-Violet 24 48
Violet-Slate
2550 49
Slate-Violet 25 50
IMI66–132 DSU II Digital Telephone System
2 – 22  Installing The DSU II Digital Telephone System 
						

							2.5.7 Wall Mounting The Telephone Stations
The DigiTech (product code 77nnn),Impact(product code 8nnnn), and Impression (product
code 2nnnn) telephones are shipped from the factory configured for desk use. To convert them
for wall-mounting, follow the procedures outlined below.
To convert the DigiTech model 77nnn telephones for wall-mounting,
1. Disconnect line cord and handset cord from telephone.
2. Turn telephone over to expose lower housing.
CAUTION
The telephone circuitry is sensitive to static electricity discharge. Be sure that your body and
the workplace are properly grounded to avoid any static electricity discharge while you
perform step 3.
3. Remove screws that attach lower housing to
upper housing. Carefully separate lower and
upper housings making sure not to disconnect
wiring between them.
4. Rotate lower housing 180 degrees. Do not
disturb any internal wiring.
5. Refasten lower housing to upper housing.
Make sure no wires are caught between upper
and lower housings. Do not over-tighten
screws wile refastening the housings.
6. Route line cord through appropriate channel
on lower housing, and reconnect it to
telephone. You may substitute a shorter line
cord if you wish.
7. Reconnect the handset cord.
Upper housing Remove lower housing,
rotate 180 degrees
and replace
CAHS003
Rotating The Lower Housing On
Model 77nnn Telephones
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 23 
						

							To convert the Impact (models 80nnn and 81nnn) and Impression (models 20nn
and 21nnn) telephones for wall-mounting,
1. Turn telephone over and disconnect line cord and handset cord from telephone. Do not
damage line cord on plastic dressing tabs.
2. Remove screws from pedestal and unlatch it from telephone housing, rotate it 180 degrees,
re-latch its tabs in the slots in the lower housing of the telephone, and replace screws.
3. Route line cord as appropriate, and reconnect it to telephone. Substitute shorter line cord if
desired.
4. This telephone has a reversible handset retaining hook. When wall mounting, pull up this
hook and rotate it 180 degrees.
5. Reconnect the handset cord.
There are wall-mounting enhancement kits available through your normal distribution channels.
These kits include a handset cradle cup that you can screw-mount to the telephone’s upper
housing. The product codes for these enhancement kits are: HCCI for theImpacttelephones
(models 80nnn and 81nnn) and Impression telephones (models 20nnn and 21nnn), and HCCX
for the DigiTech telephones (model 77nnn).
Pull up spring-loaded
handset wall tab,
rotate it 180 degrees,
and release.
CAJS004
Lower
Housing Pedestal
Unsnap
Pedestal
Here Rotate pedestal
180 degrees for
wall mounting.
CAJS005
Reversing The Pedestal And Handset Hook
(Model 80nnn, 81nnn, 20nnn and 21nnn Telephones)
IMI66–132 DSU II Digital Telephone System
2 – 24  Installing The DSU II Digital Telephone System 
						

							To wall-mount the telephones,
After configuring a telephone for wall mounting, either mount it directly on the wall using two
#10 pan-head screws (obtained locally), or mount it on a wall jack cover plate. If using a wall
jack cover plate, use an AT&T type 630B wall plate for best results.
1. If #10 screws are used, thread them into the wall within 1/8-inch of the surface. Refer to the
illustration for the spacing dimensions.
2. Position the keyhole-shaped holes in the bottom of the telephone over the #10 screws or the
cover plate studs. Slide the telephone down until a slight click is felt.
3. To remove the telephone, lift to unsnap both screws or studs from the bottom housing, and
then lift away from the wall.
315/16
Wall Plate - OR - #10 Screws
NOTE:
AT&T 630B wall plate is recommended
for secure mount.
CAJS006
Detailing The Station Wall Mounting
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 25 
						

							2.6 Installing DSS/BLF Consoles
The digital telephone system supports the installation and use of DigiTech DD32X,Impact
IB64X, and Impression DU32X consoles at any available station port. The number of installed
consoles is limited only by port availability; however, since a console complements a companion
telephone located in an adjacent station port, you can use up to one-half of the available station
ports for consoles. In addition, with the dual console feature (discussed later), a full two-thirds of
the total station port capacity is available for console use.
You can assign two consoles to one telephone, each taking its own station port. This feature is
especially useful with DigiTech DD32X and Impression DU32X consoles and a J1632 system
that has one or two JM408 expansion modules included with it. Thisdual console featureallows
a station user to monitor up to 48 stations from one station location using 32-button consoles.
Install the first console at the station port that is logic-paired with the station that you wish to
complement. Install the second console at any station port except 10 or 11 and, using class of
service programming, assign it to the same station port that is logic-paired with the first console.
Detailing The Digital Station Port Logic Pairing
10–11 26–27 42–43
12–13 28–29 44–45
14–15 30–31 46–47
16–17 32–33 48–49
18–19 34–35 50–51
20–21 36–37 52–53
22–23 38–39 54–55
24–25 40–41 56–57
You can install the DSS/BLF console at any station port and assign it to a station without first
installing a console at the station’s logic-paired port if you wish. This configuration is
convenient for adding a console to an existing telephone installation that already has its
logic-paired port occupied; however, do not use this configuration for assigning a console to
station ports 10 and 12 because the console buttons will not be usable for programming. As
discussed above, this feature is also useful for adding a second console to a station that already
has a paired console installed with it.
The digital telephone system automatically recognizes a console when you connect it to a station
port and automatically assigns the station intercom numbers to the console buttons for direct
station selection (DSS) purposes with associated busy lamp field (BLF) status lights. However,
the console buttons are fully programmable and the station user can customize them as he or she
sees fit by programming them as DSS buttons or as automatic dialing (autodial) buttons.
When the user programs the buttons for DSS use, autodial capability is also available at a
secondary level at each DSS button.
IMI66–132 DSU II Digital Telephone System
2 – 26  Installing The DSU II Digital Telephone System 
						

							While the first console (the one installed at the logic-paired port) extends the autodial buttons of
the paired telephone by 48 and provides DSS/BLF coverage for station ports 10 through 57, the
second console (the one installed at the programmed station port) provides DSS/BLF coverage
as follows:
·On a 32-station system with two 8-station expansion modules, the first 16 buttons are
automatically assigned (defaulted) to station ports 42 through 57 for DSS purposes.
·On a 32-station system with one 8-station expansion module, the first 8 buttons are
automatically assigned (defaulted) to station ports 42 through 49 for DSS purposes.
·On any other smaller station capacity system, all buttons are unassigned.
When you install a console and program it to complement a telephone without first having a
console installed at a port that is logic-paired to that telephone, its button assignment is
automatically defaulted, as described above, but the user can reprogram it as required. It is
important to remember that when you program for a second console, the system sets the console
button mapping to that which is described above. When you clear the assignment, the system
resets the button mapping to match a logic-paired console. This means that when you clear the
second console feature, the console installed at that port complements the telephone that is
installed at its logic-paired port instead of the telephone that is located at the program-designated
port, and its buttons are automatically reassigned to station ports 10 through 57.
DIGITECH
COMDIAL
SPKRTA P
TRANS
CONF
MUTE
HOLD ITCM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
CLIP TERMIINALS
50
26
1 25
{
{
{
Typical
TelephonePaired-Port
DSS/BLF
ConsoleSecond
DSS/BLF
Console
CAJS008
Connecting DSS/BLF Consoles
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 27 
						

							2.7 Connecting A Power Failure Station
The system provides a tip and ring pair connected to line 1 as an emergency power failure
circuit. This circuit is active during a commercial AC power failure if an external battery
assembly is not installed to provide battery back-up power to the system. Connect an industry
standard, single-line telephone, such as a model 2500, to a power failure pair and use it to
provide communications capability until the AC power to the system is restored.
NOTE: The system also provides one power failure connection with each add-on expansion
module.
37
38
39
40
41
42
43
44
45
46
47
48
49
50
{
Power Failure Jack (pins 3 & 4)
(16-Line, 32-Station Base Unit) Power Failure Terminals on
Station Connection Block
(4-Line, 8-Station and 8-Line, 16-Station Base Units)
DSU221
Typical Industry Standard
Non-electronic Telephone
(Power Failure Interface)
Typical Industry Standard
Non-electronic Telephone
(Power Failure Interface)
Pin 3 = Power Failure Tip
Pin 4 = Power Failure Ring
1 2 3 4 5 6
Making A Power Failure Connection
IMI66–132 DSU II Digital Telephone System
2 – 28  Installing The DSU II Digital Telephone System 
						

							2.8 Using The Auxiliary Equipment Interface
You can connect an industry-standard telephone or a data device such as a modem or a FAX
machine on a line ahead of the common equipment if you wish. If you do so, the system can
detect an off-hook condition in the connected device and turn on the line status light at the
system telephones to indicate that the line is busy.
Connection is across tip and ring of lines 2 and 4. The system provides the auxiliary interface
connections at terminals 1 and 6 of common equipment line jacks 1 and 2.
NOTE: When you are employing this auxiliary interface feature, the line-to-line port
reassignment feature (Section 2.4.2 ) works as described except in regard to line 2
and line 4. You can only reassign Line 2 to line port 4 and line 4 to line port 2.
{
{
DSU210
1
2
3
4
5
6
1
2
3
4
5
6
Auxiliary
Interface
for Line 2 TIP 2
Line
Jack
1
Line
Jack
2
TIP 4
RING 4RING 2
Auxiliary
Interface
for Line 4
Optional non-key
system telephone
device or data
device. (No A-lead
control required)
Making The Auxiliary Interface Connections
DSU II Digital Telephone System IMI66–132
Installing The DSU II Digital Telephone System 2 – 29