GE MDS P-60 Reference Manual page 33

Table 5. J1 Pin Connections (Analog Interface/Utility Board)
J1
CONNECTION
PINS
1 & 2 Transmit Audio
3 No Connection
4 & 5 Receive Audio
6 No Connection
7 & 8 Keyline connection for positive or negative
keying
8 & 11 Keyline connection when an internal current
source is used. (Requires a jumper between
Pins 7 and 10.)
9 AC Failure Alarm
10 +13 Vdc
11 PCB ground connection
12 Received Signal Strength Indication (RSSI)
Figure 17. Analog Interface/Utility Board Connections—MDS P-50
MDS 05-2818A01, Rev. C
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
http://www.RSPSupply.com/p-8466-MDS-P60-Compact-Enclosure-(One-Radio).aspx
Connector J1 on the Analog Interface Utility Board is used for all audio and
keyline terminations. Refer to
Figure 17 shows a detailed view of the Analog Interface/Utility Board.
MDS P-60/P-60 HL Reference Manual
Table 5 for a summary of J1 pin connections.
REMARKS
600 , balanced
600 , balanced
This arrangement allows the radio to be keyed
by a variety of different methods that will
accommodate most systems.
Options" on Page 34.
This method uses the on-board 12 volt DC
See "Keyline Options" on Page 34.
supply.
Normally 11 Vdc; drops to zero volts if an AC
failure occurs.
Accessory power (2 Amp maximum) jumpered
to Pin 7 for keying with an internal current
source. See description for Pins 8 & 11 above.
Connects to ground on the Interface/Utility
Board.
Approximately 0 to 5 Vdc through a 10K
resistor.
See "Keyline
33