Interfaces of the Antenna Control Unit (ACU)
98-145510-E Chapter 4: Interfaces 4-5
4.1.7 RS-232 and RS-422 connectors for VSAT modem
Use these connectors to connect the ACU to the VSAT modems with serial interfaces. See
Appendix C, VSAT modem settings.
RS-232
RS-422
Outline (on the ACU) Pin Pin function
1 Not connected
2RXD
3TXD
4DTR
5Ground
6DSR
7RTS
8CTS
9 Receive Signal Strength Indicator
Table 4-7: ACU RS-232 connector, male, outline and pin assignment
Outline (on the ACU) Pin Pin function
1Ground
2Line A RXD (+)
3Line B TXD (+)
4Ground
5Ground
6 Not connected
7Line A RXD (-)
8Line B TXD (-)
9 Not connected
Table 4-8: ACU RS-422 connector, male, outline and pin assignment
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