NEC DTU-70 Instruction Manual page 76

18kw uhf digital tv transmitter
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(2) Serial Communication Connection
(See Fig. 3-9, Rear side view of TX control)
1) RS-232C
Table 3-11 REMOTE CONTROL (J3) on INTERFACE BOARD
Pin No.
1
2
Receive Data (RXD)
3
Transmit Data (TXD)
4
Data Terminal Ready (DTR)
5
Ground
6
Data Set Ready (DSR)
7
Request to Send (RTS)
8
Clear to send (CTS)
9
2) RS-422
Table 3-12 REMOTE CONTROL (J3) on INTERFACE BOARD
Pin No.
1
2
Transmit Data + (TXD +)
3
Transmit Data - (TXD -)
4
5
Ground
Receive Data + (RXD +)
6
Receive Data - (RXD -)
7
8
9
Signal
Signal
3 - 28
GWP-G22996

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