User's Manual

14221-1200-4010, Rev. B
72
P3, the cable’s 6-pin connector, is a connector for basic accessories (e.g., hookswitch, external relay with
back-EMF diode, etc.).
P4, the cable’s D-subminiature 25-pin connector, provides audio and data connections for optional
equipment such as an external siren and light system (e.g., Federal Signal SS2000 SmartSiren
®
), external
relay with back-EMF diode, etc.
P5, the cable’s D-subminiature 9-pin connector, provides NMEA-formatted GPS serial data connections
for the external computer processing the NMEA-formatted GPS data received by the radio’s internal GPS
receiver. See Section 13.5 on page 71 for additional information.
Table 13-1: Option Cable 14002-0174-01 Interconnections
44-PIN I/O
CABLE
CONNECTOR
P1 PIN
SIGNAL NAME
TO/FROM
DESCRIPTION
19
SPKR1
P2 pin 1
This output is not functional in a remote-mount radio
installation; since the speaker output from the control
head drives the external speaker.
20
SPKR1
21
SPKR2
P2 pin 2
22
SPKR2
10
OUT2
P3 pin 1
Digital Output 2 (open-collector, 100 mA / 17 V maxi-
mum). An external pull-up resistor is needed if required
by the external device’s input during the high/off state.
Use P3 pin 2 or 4 for ground.
Configure via the “External Output Control Line 2” in Radio
Personality Manager’s (RPM’s) External I/O dialog box. For
example, an external logging recorder’s record
enable/disable input can be controlled by setting “External
Output Control Line 2” to “Extern. Tx Indicator.”
7
GND
P3 pins 2 & 4
Chassis Ground (fused inside radio).
26
HKSW
P3 pin 3
Digital Input for Hookswitch (default) or for radio PTT.
Active = Ground. Inactive = Open.
25
INP2
P3 pin 5
Digital Input 2. Active = Ground. Inactive = Open. Use P3
pin 2 or 4 for ground.
Configure via the “Auxiliary Input 2” in Radio Personality
Manager’s (RPM’s) External I/O dialog Box.
28
SWA+
P3 pin 6
Switched A+ (DC Power) Output.
8
GND
P4 pin 1
Chassis ground (fused inside radio).
30
DGPS_DATA
P4 pin 4
GPS Receiver Module DGPS Correction Data Serial Data
Input (NMEA formatted).
4
EXTRX
P4 pin 5
External Rx Audio Input (from external/2
nd
receiver; summed).
9
RESERVED
P4 pin 7
Not used.
3
SDATA
P4 pin 8
For a remote-mount radio installation, see footnote
2
.
2
In a remote-mount XG-100M radio installation, this pin on the radio’s DB-44 connector is inactive/disabled. For the
CH-100 or CH-721 control head, use the respective pin on the Control Head Option Cable’s female DB-25 pin connector;
see Section 13.2 for additional information.