Pyramid WM-1000, Product Manual

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Pin 9: On-Air detect.
Trunking: Connect to a point in the radio that indicates the mobile transmitter is actually on the
air.
This is not the same as mic PTT. If pin 9 goes positive during transmit, program the on-air detect
line for active high (common data). If pin 9 goes to ground during transmit, program the on air
detect line for active low.
Conventional: Used for local mic repeat indication from the mobile. Connect pin 9 to pin 4 of
the WB-1000 and program the on-air detect line for active low.
Pin 10: Emergency Output. Connect to the Emergency input on the mobile radio. On Motorola radios,
the Emergency input opens from ground on activation and SW4 should be in the “NC” position.
On all other radios, the Emergency input pulls to ground on activation and jumper SW4 should
be in the “NO” position.
Install the WB-1000 in the vehicle using an AMPS mounting bracket hardware. Install the unit where
it will be easily visible by the driver and will not interfere with the drivers vision or constitute a hazard during a
vehicle collision. The WB-1000 mounts in the bracket using the four 4-40 x 1/2” machine screws.
Do not use longer screws to mount the WB-1000 to the bracket or damage may result.