Motorola MVME2603-1121A, Installation And Use Manual

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EIA-530 Connections
C-6
C
Table C-4. MVME761 EIA-530 Interconnect Signals
Pin
Number
Signal
Mnemonic
Signal Name and Description
1 Not used.
2 TxD_A Transmit Data (A). Data to be transmitted; output from DTE to DCE.
3 RxD_A
Receive Data (A). Data which is demodulated from the receive line; input from
DCE to DTE.
4 RTS_A
Request to Send (A). Output from DTE to DCE when required to transmit a
message.
5 CTS_A
Clear to Send (A). Input to DTE from DCE to indicate that message transmission
can begin.
6 DSR_A
Data Set Ready (A). Input to DTE from DCE to indicate that the DCE is ready to
send or receive data. In DCE conÞguration, always true.
7 SG Signal Ground. Common return line for all signals.
8 DCD_A
Data Carrier Detect (A) . Receive line signal detector output from DCE to DTE to
indicate that valid data is being transferred to the DTE on the RxD line.
9 RxC_B
Receive Signal Element TimingÑDCE (B). Control signal that clocks input
data.
10 DCD_B
Data Carrier Detect (B). Receive line signal detector output from DCE to DTE to
indicate that valid data is being transferred to the DTE on the RxD line.
11 TxCO_B
Transmit Signal Element TimingÑDTE (B). Control signal that clocks output
data.
12 TxC_B
Transmit Signal Element TimingÑDCE (B). Control signal that clocks input
data.
13 CTS_B
Clear to Send (B).
Input to DTE from DCE to indicate that message transmission
can begin.
14 TxD_B
Transmit Data (B).
Data to be transmitted; output from DTE to DCE.
15 TxC_A
Transmit Signal Element TimingÑDCE (A). Control signal that clocks input
data.
16 RxD_B
Receive Data (B). Data which is demodulated from the receive line; input from
DCE to DTE.
17 RxC_A
Receive Signal Element TimingÑDCE (A). Control signal that clocks input
data.
18 RTS_B
Request to Send (B). Output from DTE to DCE when required to transmit a
message.
19 LL_A
Local Loopback (A). Reroutes signal within local DCE. In DTE configuration,
always tied inactive and driven false. In DCE conÞguration, ignored
20 DTR_A
Data Terminal Ready (A). Output from DTE to DCE indicating that the DTE is
ready to send or receive data.
21 RL_A
Remote Loopback (A). Reroutes signal within remote DCE. In DTE
conÞguration, always tied inactive and driven false. In DCE conÞguration,
ignored.