Remote (J20); Ethernet (J21); Location J22 (Optional); Compact Flash - Radyne DMD20 Installation And Operation Manual

Rear Panel Interfaces

5.21 REMOTE (J20)

The Remote Port is a RS-485 or RS-232 Connection for remote monitor and control of the
modem. It is a 9-Pin Female "D" Connector. Refer to Table 5-10 for pinouts.
Table 5-10. Remote Port (RS-485 or RS -232) 9-Pin Female "D" Connector (J20)
Pin No.
1 Transmit Data RS-485 (+)
2 Transmit Data RS-232
3 Receive Data RS -232
4 NC
5 Ground
6 Transmit Data RS-485 (–)
7 NC
8 Receive Data RS -485 (+)
9 Receive Data RS -485 (–)

5.22 ETHERNET (J21)

The ETHERNET Port (J21) can be used for the Monitor & Control (M&C) Functions of the unit.
The physical interface is a standard female RJ-45 Connector.

5.23 Location J22 (Optional)

This optional location (J22) is reserved for a future Ethernet Satellite Data Port.

5.24 Compact Flash

The compact flash slot is located on the right side as viewed from the rear of the unit. It is for
Radyne ComStream use.
5-12
Signal Name
DMD20 Universal Satellite Modem
Signal
TX-485-B
TXD-232
RXD-232
NC
GND
TX-485-A
No Connect
RX-485-B/CTS
RX-485-A
Direction
Output
Output
Input
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Output
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Input
Input
TM103 - Rev. 1.1