5-31
INSTALLATION-DK 16 KSU & PCB
SECTION 100-816-205
MARCH 1993

TABLE 5-G

PIOUS CONTROLS AND INTERFACE CONNECTORS

CONTROL/INDICATOR/
CONNECTOR
(Figure 5-19)
TYPE OF COMPONENT DESCRIPTION
SMDR/TTY Interface
Connector J3 Dual modular connector Interface connector for SMDR printer/
call accounting device and
maintenance terminal/modem.
10-pin connector
Wire jumper
Interface connector for Remote
Maintenance Modem piggy-back module.
External Page/Door Lock Control Relay
MAKE or BREAK jumper.
IMDU Connector P1
M/B Make/Break Jumper
W1
TTY Baud Rate Switch
SW2 Two-position locking push-
button switch
Selects baud rate (300 or 1200 bps) for
Remote Maintenance Modem piggy-back
module (IMDU) or external TTY jack.
Modem/TTY Switch
SW3 Enables PIOUS for operation with IMDU
modem or TTY jack.
9-pin connector Interface connector for Remote
Maintenance Modem piggy-back module.
IMDU Connector P2
3-pin connector Interface connector for Remote
Maintenance Modem piggy-back module.
IMDU Connector P3
Wire jumper Night/Hold Relay MAKE or BREAK
jumper.
M/B Make/Break Jumper
W2
Wire jumper Alarm sensor normally open or normally
closed jumper.
Alarm Sensor N.O./N.C.
W3
Wire jumper IMDU or external modem operating spec-
ification jumper plug. (BELL = NO W4)
CCITT/BELL Jumper
W4*
Two-position slide switch Selects baud rate (300 or 1200 bps) for
SMDR printer or call accounting device.
SMDR Baud Rate
Switch SW1
Two-position slide switch
*Most modems in USA re
q
uire BELL specification: W4 not factor
y
-installed.
13 CO LINE/DIGITAL TELEPHONEINTERFACE UNIT (KCDU)
13.00 General
13.01 The KCDU, which can only be installed in the
Expansion Unit of DK16 (it will not function in DK24/
56/96), has two loop start CO line circuits and four
digital telephone circuits. The KCDU digital tele-
phone circuits can support all but one of the de-
vices supported by either the PDKU or Base Unit
integrated digital telephone circuits: digital tele-
phones, PDIU-DIs/PDIU-D12s, PDIU-DSs, ADMs,
and a DDCB. The KCDU does not support a DDSS
console. One or two KCDU PCBs may be installed
in the Expansion Unit. No other station or CO line
PCB can be installed if the KCDU is installed.
13.02 The KCDU is shown is Figure 5-21, and its
controls, connectors, and indicators are described
in Table 5-H.
13.10 KCDU Configuration
13.11 The KCDU may have to be configured to
control excessive loudness if the system is close to