Motorola ASTRO XTL 5000 Basic Service Manual page 144

9-6
Table 9-3. J100 Remote Mount Control Head Mobile Accessory Port (MAP) (Continued)
Pin
18 VIP OUT 1
19 VIP OUT 2
20 N/C
21 RX FILT AUDIO Receive Filtered Audio
22 MONITOR
23 AUX MIC
24 SW B+
25 N/C
26 N/C
October 30, 2006
Function
Vehicular Interface
Output
Vehicular Interface
Output
No Connect
Out
[A(rx)]
Monitor overrides PL
Rear microphone input
[A(tx)]
Switched Battery Voltage This voltage is available when the radio is switched
No Connect
No Connect
Basic Troubleshooting: Accessory Connectors
Description
High voltage open drain output used for enabling
relays used for accessories such as horn/lights.
High voltage open drain output used for enabling
relays used for accessories such as horn/lights.
This is a fixed level (independent of volume control
setting) received audio signal, including alert tones.
Flat or de-emphasis is programmed by CPS. Output
voltage is approximately 100 mVrms per 1kHz of
deviation. The DC offset is 1.4V. APCO required.
This input is used to detect when a rear microphone
accessory is taken 'off-hook', to over-ride PL to alert
the user to busy traffic prior to transmitting.
This microphone signal is independent of the
microphone signal on the front microphone
connector. The nominal input level is 80mVrms for
60% deviation when used for motorcycle, but can
also support 300 mVrms for future APCO
accessories. The DC impedance is 1560 ohms and
the AC impedance is 560 ohms, 1Vrms max. 9V DC
with no input load. APCO required.
on. The voltage is supplied by the control head.
6871769L01-A