spectro
Member
I have question regarding getting 4 wire audio out of a MCS 2000? I have previously integrated a Tait TM9155 with an added audio line card to achieve the 600 ohm balanced audio and connected it to a Trunked Analog Gateway (P25 System) by using this pinout:
Description TAG Pin Conn (HD15) Pins Description
E&M Signaling Input 1 <---------> 9 13.8V from Radio
E&M Signaling Input 2 <---------> 12 Busy/Gate
Audio Input 3 <---------> 4 4W_Line_In - (Audio Out)
Audio Input 4 <---------> 10 4W_Line_In - (Audio Out)
Audio Output 5 <---------> 14 4W_Line_Out - (Audio In)
Audio Output 6 <---------> 15 4W_Line_Out - (Audio In)
E&M Signaling Output 7 <---------> 3 PTT-IN
E&M Signaling Output 8 <---------> 7 GND
I am not sure where to get the same inputs and outputs from the MCS 2000 accessory Connector
Pinout for the Accessory Connector
1 SPKR+
2 INT SPKR+
3 SPKR-
4 DIGITAL GND
5 BUSY
6 BUS+
7 I/O 8
8 I/O 5
9 EMERGENCY
10 ANALOG GND
11 FIL AUD OUT
12 AUX RX IN2
13 MIC IN
14 SW B+
15 IGNITION
16 I/O 2
17 LH RESET
18 BUS-
19 SCI RX DATA
20 I/O 4
21 I/O 3
22 RSSI OUT
23 EXTERNAL MIC IN
24 AUX TX IN2
25 UNIV IO OUT
The Ground (Pin 4) is easy enough but I am not sure where to get PTT-In. I think I may have to program it as a I/O. I am assuming I can get voltage from the Bus+ pin 6 which should b easy enough to test with a multimeter. The Busy gate (pin 5) seems clear enough. I think I should use (Pin 11) Fil Aud Out to go to one of my Audio Inputs for the TAG. The rest seems fuzzy on what is most appropriate. Any assistance would be greatly appreciated.
Description TAG Pin Conn (HD15) Pins Description
E&M Signaling Input 1 <---------> 9 13.8V from Radio
E&M Signaling Input 2 <---------> 12 Busy/Gate
Audio Input 3 <---------> 4 4W_Line_In - (Audio Out)
Audio Input 4 <---------> 10 4W_Line_In - (Audio Out)
Audio Output 5 <---------> 14 4W_Line_Out - (Audio In)
Audio Output 6 <---------> 15 4W_Line_Out - (Audio In)
E&M Signaling Output 7 <---------> 3 PTT-IN
E&M Signaling Output 8 <---------> 7 GND
I am not sure where to get the same inputs and outputs from the MCS 2000 accessory Connector
Pinout for the Accessory Connector
1 SPKR+
2 INT SPKR+
3 SPKR-
4 DIGITAL GND
5 BUSY
6 BUS+
7 I/O 8
8 I/O 5
9 EMERGENCY
10 ANALOG GND
11 FIL AUD OUT
12 AUX RX IN2
13 MIC IN
14 SW B+
15 IGNITION
16 I/O 2
17 LH RESET
18 BUS-
19 SCI RX DATA
20 I/O 4
21 I/O 3
22 RSSI OUT
23 EXTERNAL MIC IN
24 AUX TX IN2
25 UNIV IO OUT
The Ground (Pin 4) is easy enough but I am not sure where to get PTT-In. I think I may have to program it as a I/O. I am assuming I can get voltage from the Bus+ pin 6 which should b easy enough to test with a multimeter. The Busy gate (pin 5) seems clear enough. I think I should use (Pin 11) Fil Aud Out to go to one of my Audio Inputs for the TAG. The rest seems fuzzy on what is most appropriate. Any assistance would be greatly appreciated.