Comdial Dsu II Installation Manual

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...

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...

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...

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...

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...

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...

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...

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...

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...

2.9 Connecting The Common Audible
And Auxiliary Ringing Interface
You can use the relay closure dry-contact points for controlling external audible equipment.
These contact closures track the pattern of the ringing for incoming calls. The contacts are closed
during the ringing period and are open during the silent period.
CAUTION
Do not exceed a 1 amp at 24 volts (0.5 amp at 48 volts) load on these control terminals. If the
load requirements exceed this limit, connect the load through an external slave...