User's Manual

M7X and M7R Page 4-8 Installation
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Table 4-2 Radio to Control Head Interconnections
M7 Radio Rear Panel RCU Connector Characteristic Control Head E1 Connector
Pin Signal Pin Signal
1
2
RRing
RTip
Balanced 120 ohm, 2.048 Mbps,
HDB3 coding
1
2
TRing
TTip
3 Ground 0 V 3 Ground
4
5
TRing
TTip
Balanced 120 ohm, 2.048 Mbps,
HDB3 coding
4
5
RRing
RTip
6 Supply out When the radio is operating from an
ac input, the output is 24 Vdc (±1 V)
When the radio is operating from a
dc input, the output is between 20
and 32 Vdc
The Supply output is fused at
500 mA
6 Supply in
7 Ground 0 V 7 Ground
8 Supply out As pin 6 8 Supply in