Harris M7300 Installation And Product Safety Manual page 68

MM-014763-001, Rev. E
Table 11-1: M5300/M7300 Option Cable CA-012349-001 Interconnections
44-PIN I/O
CABLE
SIGNAL NAME
CONNECTOR
P1 PIN
12 MICHI
1 EXTALO
14 VOLHI
15 CTLON
16 XTONEENC
17 XTONEDEC
6 EXTALO
24 HORNRING
23 SONOFF
18
2 OUT1
29 TXENB+
27 EXTMIC
28 SWA+
32 GPS_NMEA_RX
31 GPS_NMEA_TX
7
11 IGNITION
33
through
44
68
TO/FROM
P4 pin 11
P4 pin 12
P4 pin 13
P4 pin 14
P4 pin 15
P4 pin 16
P4 pin 17
P4 pin 18
P4 pin 19
INP1 P4 pin 21
P4 pin 22
P4 pin 23
P4 pin 24
P4 pin 25
P5 pin 2
P5 pin 3
GND P5 pin 5
(no connection)
— (no connections)
DESCRIPTION
In a front-mount M5300/M7300 radio installation, MICHI
and EXTALO provide the public address (PA) mic audio
from the mounted (local) CH-721 to the siren and light
system (e.g., Federal Signal SS2000 SmartSiren). Pin
11 connects to SS2000's DB-9 pin 5. Pin 12 connects to
SS2000's DB-9 pin 6. For a remote-mount radio
installation, see footnote
Volume High
Control On Digital Output (for non-CAN based radio)
External Tone Encode Audio
External Tone Decode Audio
External Audio Output (Balanced, Low)
In a front-mount M5300/M7300 radio installation, this pin
for the siren/PA interface is the horn/ring logic input to the
radio's mounted (local) CH-721. When a connected third-
party siren and light system (e.g., Federal Signal
SmartSiren SS2000) has its horn/ring function active, this
input is used to signal the head/radio as such. Connects
to SS2000's DB-9 pin 8. For a remote-mount radio
installation, see footnote
In a front-mount M5300/M7300 radio installation, this pin
for the siren/PA interface is the siren on/off logic output
(open-collector) from the radio's mounted (local) CH-721.
It is the signal that powers the connected third-party siren
and light system (e.g., Federal Signal SmartSiren
SS2000) on and off. Connects to SS2000's DB-9 pin 4.
For a remote-mount radio installation, see footnote
Digital Input 1
Digital Output 1 (open-collector)
Transmit Enable B+ (for non-CAN based radio)
External Mic Audio Input
Switched A+ DC Power Output
(for non-CAN based radio)
GPS Receiver Position Data Serial Data Output
(NMEA-Formatted)
GPS Receiver Module Initialization Data Serial Data Input
(NMEA-Formatted)
Ground for GPS Serial Data Signals
(fused on radio's PK Board at 3.15 amps)
Unused/Spare ignition sense input
These pins of P1 are not used/not connected
5
.
5
.
5
.