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Proper operation of the MAPNET channel requires that you connect a 24 VDC power harness to
pins 1, 2, and 3 of connector P4 on the MAPNET Transceiver motherboard. The power
requirements of the transceiver are as follows:
24 V Voltage Range: 20.4 to 32 VDC
24 V Current Draw: 25 mA, max.
8 V Voltage Range: 7.5 to 8.5 VDC
8 V Current Draw: 150 mA, max.
Signal Voltage Range: 20.4 to 32 VDC
Signal Current Draw: 200 mA @ 20.4 VDC (plus 1.75 mA per device, max.)
170 mA @ 24 VDC (plus 1.6 mA per device, max.)
Pins 4 and 5 of P4, meanwhile, are used to connect to signal cards.
Figure 14. Location of P4 Connector
Figure 15, below, shows the power and signal connections for P4.
Figure 15. Signal and Power Connections
Signal and Power Connections
P4 Connector
Connect 24 V Power and Signal to P4
1
2
3
4
5
POWER HARNESS
(733-663)
TO P17 ON 565-247
POWER SUPPLY
SIGNAL HARNESS
(733-523)
TO PINS 1 AND 2
OF P4 ON 565-008
SIGNAL CARD
P4 ON 562-974
MAPNET
TRANSCEIVER
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