Pyramid WM-1000 Product Manual page 19

Pin 7: Mobile COR detect. This line is used to indicate when the WB-1000 should repeat the transmission
to the WM-1000 handheld. Connect to a logic point in the radio that indicates proper tone and car
rier have been detected or the audio unmute line. If this line goes more positive during an unmute
condition, program the mobile COR line as active high (in the CPS). If the line goes more negative
during an unmute condition, program the mobile COR line as active low. If this line is open collec
tor from the mobile radio, make sure to check the 'pull up' option in the CPS for COR.
Pin 8: Local mic audio. If programmed for local mic repeat, the WB-1000 will go into transmit mode and
repeat the audio from this line whenever the mobile radio is keyed by the local mic. Connect this
line to the mobile transmitter audio path before limiting or filtering. This input is AC coupled and
high impedance (>5.6Kohms). The input level at this pin should be 300mV to 5VPP. Use the Local
Mic Gain in the CPS to adjust the level of mic audio rebroadcasted out to the WM-1000 units.