Interfaces of the modem
98-175666-C
Chapter 3: Interfaces
3-7
3.2.3 RS-232 and RS-422 connectors
The modem has two RS-232 and one RS-422 connector for control information to and
from the BDU. See section
Connection between ADU, BDU and modem
on page 2-26 for
details how to connect the BDU to the modem.
Outline
(on the BDU)
Pin
number
Pin function
1
Inner conductor: 50 MHz clock,
Rx/Tx
2
Outer conductor: GND (Shield)
Table 3-9: F connector, Rx and Tx, outline and pin assignment
Outline (on the
modem)
Pin
Pin function
1
Not connected
2
BUC TXD
3
BUC RXD
4
Not connected
5
GND
6
Power good
7
GMU reset
8
Temperature out of range
9
Core module RSSI
Table 3-10: RS-232 connector, male, outline and pin assignment, modem
1
5
6
9
