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INSTALLATION-DK 16 KSU & PCB
SECTION 100-816-205
MARCH 1993
1) Remove the PCBfrom its protective packaging.
NOTE:
The dB PAD switches SW101 through SW401
control excessive loudness resulting from close
proximity to the CO or PBX telephone ofice by
providing a 3 decibel (dB) signal level drop to, or
from, the PBX or CO when set to the 3 position.
Switches are factory-set to the 0 (0 dB signal level
drop) position.
2) If the Expansion Unit is located within one mile
of the PBX or CO telephone
off
ice, set dB
PAD
switches
SW101
through
SW401
to the 3 (-3
dB signal level drop) position.
3) Insert the PCOU into the appropriate slot (refer
to Paragraph 2.22) and apply firm, even pres-
sure to ensure proper mating of connectors.
4) After installing the PCOU, gently pull the PCB
outward. If the connectors are properly mated,
11.30 PCOU Wiring
11.31
Refer to PCOU Wiring Diagram, Section
100-816-208,
for wiring/interconnecting details.
11.40 PCOU Programming Overview
11.41
The following parameters may be specified,
through programming, for the PCOU:
Program 03
l
Specify code 11 for the slot in which the PCOU
is installed.
Program 1 O-l
l
Allows/denies two-CO Line Conference and Di-
rect Inward System Access (DISA).
Program 15
l
Assigns DTMF/Dial Pulse (DP) Dialing, Tenant Ser-
vice, DISA, and other attributes to each CO line.
Program 16
l
Assigns CO lines to groups 81 - 88, and dial 9
group.
Program 40
l
Assigns stations access to CO lines (incoming
a slight resistance will be felt.
and outgoing access).
CO LINE MODULAR
CO LINE MODULAR
JACK CIRCUITS 1 AND 2
JACK CIRCUITS 3 AND 4
SW301
om3
PAD
SW401
El
0
PAD3
BACKPLANE
- CO LINE
LED’S
FIGURE 5-17
PCOU CONTROLS, INDICATORS, AND INTERFACE CONNECTORS
5-26