Motorola MVME1603, Installation And Use Manual

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Serial Interconnections
C-7
C
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.
Table C-5. MVME760 EIA-530 Interconnect Signals (Continued)
Pin
Number
Signal
Mnemonic
Signal Name and Description