User Manual

Table Of Contents
Marine Systems
Aviation Recorders
Page 3–12
Initial Issue 165M0601-00
Feb. 01/05
6
4
91
3
7
8
2
J1 Pilot Port Connector
72 in. 2 1.8 m 0.05 m
5
P2 DB9 Connector
Figure 3–4. Pilot Port Cable
NOTE: A Digital Volt Meter may be used to determine the “A” and “B” polarities. A
negative voltage when referenced to ground would indicate “A”, while a positive
voltage when referenced to ground would indicate “B”.
Table 3–3. Pilot Port Pinout
J1 Pin Name Description Pair Color P2 Pin
1 PILOT_TXA RS4–22 Compliant Output A Blue 2
2 GND Signal/Power 0 Volt Reference Black 5
3 + 8V + 8.0 Volt ( 5%) Output Used to Power External
Test Equipment. External Equipment should be
Current Limited to 300mA
4 PILOT_TXB RS–422 Compliant Output B Black 7
5 PILOT_RXA RS–422 Compliant Input A Green 8
6 PILOT_RXB RS–422 Compliant Input B Black 3
7 TRACE/BOOT_TX TTL–Level RS–232 Serial Output (Trace Message/
Bootload Output)
8 RX_SINAD TDMA / DSC FM Discriminator Output used to
Test Receiver Performance during Special Test
Modes.
9 NO CONNECT Not Used