Motorola MVME2700 Series Installation And Use Manual page 185

EIA-530 Connections
C
C-6
Table C-4. MVME761 EIA-530 Interconnect Signals
Pin Signal
Number Mnemonic
12 TxC_B Transmit Signal Element Timing—DCE (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 Timing—DCE (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 Timing—DCE (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
configuration, 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 configuration, always tied inactive and driven false. In
DCE configuration, ignored.
22 DSR_B Data Set Ready (B). Input to DTE from DCE to indicate that the
DCE is ready to send or receive data. In DCE configuration,
always true.
23 DTR_B Data Terminal Ready (B). Output from DTE to DCE indicating
that the DTE is ready to send or receive data.
24 TxCO_A Transmit Signal Element Timing—DTE (A). Control signal
that clocks output data.
25 TM_A Test Mode (A). Indicates whether the local DCE is under test. In
DTE configuration, ignored. In DCE configuration, always tied
inactive and driven false.
Signal Name and Description
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