P500 Signaling Connector; Alarm Example - Viking 242-2009-632 Service Manual

CIRCUIT DESCRIPTION

6.13.6 P500 SIGNALING CONNECTOR

The input and output connectors for the IAC are
defined as follows. The signal interface connector
P500 (64 pin) connects the Address and Data buses
and control lines to the backplane connector. See Fig-
ure 6-26.
Pins 1-4 ADDRESS BUS (A12-A19 Only)
Pins 33-36
This address bus provides a path between the
MPC main processor and the latches and multiplexers
of the IAC. This bus retrieves information pro-
grammed into the MPC memory for the operation of
the IAC.
AC FAIL
ALARM 2 IN
DOOR OPEN
ALARM 1 IN
REPEATER 1
ALARM 1 OUT
ALARM 1 IN
REPEATER 2
ALARM 1 OUT
ALARM 1 IN
REPEATER 3
ALARM 1 OUT
ALARM 1 IN
REPEATER 4
ALARM 1 OUT
ALARM 1 IN
ALARM 1 OUT
REPEATER 5
ALARM 3 IN
SENSOR ACTIVE
Figure 6-22 ALARM EXAMPLE
Pins 5/37 ALARM 1 IN +/ALARM 1 IN -
This is an input received from a connection to an
external device as a specific alert condition.
Pins 6/38 ALARM 2 IN +/ALARM 2 IN -
This is an input received from a connection to an
external device as a specific alert condition.
March 1999
Part No. 001-2009-600
TRANSCEIVER
SECURITY DOOR
SMOKE
DETECTOR
6-48
Pins 7/39 ALARM 3 IN +/ALARM 3 IN -
This is an input received from a connection to an
external device as a specific condition.
Pins 8/40 ALARM 4 IN +/ALARM 4 IN -
This is an input received from a connection to an
external device as a specific alert condition.
Pin 9 SQUELCH ENABLE
This is an output to rear connector J1. It can be
configured for inverted output, non-inverted output or
logic controlled non-inverted output.
Pin 10 EXTERNAL REQ 2
This is an input received from a connection to an
external device.
Pins 11-14 DATA BUS
Pins 43-46
This data bus provides a means of transferring
data to and from the latches and multiplexers on the
IAC with peripheral devices in the IAC.
Pin 15 MREQ
A memory request line operates in conjunction
with the Read/Write lines. These lines read from or
write to the MPC processor memory.
Pins 16/17 UNUSED
Pin 18 SYNC IN
This is an input received from a connection to an
external device.
Pins 19/51 ALARM 1 OUT +/ALARM 1 OUT -
This is an output to an external device to perform
a specific function.
Pins 20/52 ALARM 2 OUT +/ALARM 2 OUT -
This is an output to an external device to perform
a specific function.