Toshiba Strata DK 24, Installation And Maintenance Manual

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8-42b
INSTALLATION-PERIPHERALS
SECTION 400-096-208
SEPTEMBER 1992
NOTE:
Some VM devices may ring trip when called;
in this case, set the ring voltage jumper to L
(low position) on the PESU or PSTU2 PCB
connected to the VM device.
11 ALARM SENSOR INSTALLATION
11.00 The PIOU or PIOUS PCB provides a circuit
that can be set to detect a relay open or closed
condition from a facility alarm system. When the
sensor is activated, all digital and electronic tele-
phones will sound an alarm signal. The telephone
alarm signal can be reset by any telephone with an
alarm reset button assigned in Program 39); also
the alarm tone will stop when the activation (open
or closure) from the facility alarm system is re-
moved.
11.01 Alarm Sensor Options. Jumper plug P12
on the PIOU is used to set the alarm sensor to
detect an open or closed condition from the facility
alarm system. Set P12 as follows (refer to Figure
8-27):
•
To detect a closed condition, set P12 to the N.O.
position.
•
To detect an open condition, set P12 to the N.C.
position.
11.02 Jumper W3 on the PIOUS is used to set the
alarm sensor to detect an open or closed condition
from the facility alarm system. Solder the W3 jumper
wire as follows (refer to Figure 8-27):
•
To detect a closed condition, solder W3 to the
normal open position.
•
To detect an open condition, solder W3 to the
normal closed position.