Async (J17); Terminal (J18); J19) - Radyne DMD20 Installation And Operation Manual

DMD20/DMD20 LBST Universal Satellite Modem

5.3.8 ASYNC (J17)

The Asynchronous Data Interface Port is a 9-Pin Female "D" Connector. Refer to Table 5-3 for
pinouts.
Table 5-3. ASYNC Port 9-Pin Female "D" Connector (J17)
Pin No.
1 Receive Data B (RS-485)
2 Receive Data A (RS-485/-232)
3 Transmit Data A (RS-485/-232)
4 Transmit Data B (RS-485)
5 Ground
6 No Connection
7 No Connection
8 No Connection
9 No Connection

5.3.9 TERMINAL (J18)

Used for Radyne factory use only.
5.3.10 EIA-530 (J19)
The EIA-530 Port is an RS-422/V.35/RS-232 Connection. It is a 25-Pin Female "D" Connector.
Refer to Table 5-4 for pinouts.
Table 5-4. EIA-530 Port (RS-422/V.35/RS-232) 25-Pin Female "D" Connector (J19)
Pin No.
1 Shield
2 Send Data A (-)
3 Receive Data A (-)
4 Request To Send A (-)
5 Clear To Send A (-)
6 Data Mode A (-)
7 Signal Ground
8 Receiver Ready A (-)
9 Receive Timing B (+)
10 Receiver Ready B (+)
11 Terminal Timing B (+)
TM103 – Rev. 2.5
Signal Name
Signal Name
Rear Panel Interfaces
Signal Direction
RXD_B
RXD_A
TXD_A
TXD_B
GND
---
---
---
---
Signal Direction
---
SD-A
RD-A
RS-A
CS-A
DM-A
SGND
RR-A
RT-B
RR-B
TT-B
Output
Output
Input
Input
---
---
---
---
---
---
Input
Output
Input
Output
Output
---
Output
Output
Output
Input
5-5