User Manual Part 1

27
Figure 2-5 Accessory Jack
2.5.2 IGNITION SENSE INPUT (PIN 6)
NOTE: As previously described, the ignition sense line must be connected to a switched or
unswitched power source for the transceiver to power up.
This ignition sense line is Pin 6 of the accessory connector, and it is connected using an
included wire assembly. When the ignition sense input is connected to a source switched by the
vehicle ignition switch, it provides the following functions.
1. Power automatically turns on and off with the ignition switch.
2. A turn-off delay can be programmed (see Section 3) which may prevent accidental
discharge of the vehicle battery if the transceiver is left on for extended periods (1 or 2
days). Standby current (power on, receiver squelched) is approximately 600 mA.
If these features are not used and transceiver power is to be controlled by the front-panel
power switch only, the ignition sense input can be connected to an unswitched source.
2.5.3 SPEAKER PINS (PINS 1, 2, 3)
Refer to Section 2.7 for speaker installation information.
2.5.4 AUXILIARY B OUT (PIN 4)
General
This output can be programmed for one of the following functions. The enabled condition is
a low output and the disabled condition is a high impedance state. Maximum sink current is
approximately 1.0 ampere, so a driver circuit may be required.
The Auxiliary B output is connected using one of the wires included in the accessory wire
kit. Insert the pin of the wire assembly into the Pin 4 slot of the connector as shown in Figure 2-5.
Then connect the other end to the external device.