8
C
ONTROLS AND
I
NDICATORS
OUTSIDE CASE
FIGURE 1: EXTERIOR CONNECTIONS
RADIO INTERFACE JACKS (1 and 2):
A
The 2 radio interface jacks on this unit are a 5-pin locking-type jack. Make sure the interface
cable is fully seated before use. The radio connected to the ICRI will be used to transmit and
receive only. The speaker and mic functions are disabled. Use the handset to talk if using the
ICRI as a base station.
Pinout:
A- Ground
B- Audio from radio
C- P-T-T
D- Audio to radio
E- No connection
HANDSET INTERFACE JACK:
B
This 6 pin U283 connector supports the H250/H350 handset. Audio from attached radios will be
heard through the handset. It is recommended that the handset be used during setup and
troubleshooting.
Pinout:
A-
Ground
B- Audio from radios
C-
P-T-T
D- Audio to radios
E- No connection
F- No connection
HANDSET VOLUME CONTROL:
C
This knob controls the volume to the handset only. Turn clockwise for more volume and
counterclockwise for less volume. To adjust the volume of the radios, use the corresponding
radio’s volume knob.
