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Electrical Interfaces
Table 5-19. Asynchronous Interface - 9-Pin Female "D" Connector (J17)
Pin Number
1
TX-485-B
2
TXD-232
3
RXD-232
5
GND
4
NC
9
RX-485-A
8
RX-485-B/CTS
6
TX-485-A
7
RTS
5-22
DMD2401/DMD2401L/DMD2401 IBS/IDR Satellite Modem
Signal
Transmit Data RS485 (+)
Transmit Data RS232
Receive Data RS232
Ground
Not Connected
Receive Data 485 (-)
Receive Data 485 (+)
Transmit Data 485 (-)
Request to Send
Description
Direction
Input
Input
Output
–
–
Output
Output
Input
Input
TM065 – Rev. 3.3
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