Emerson Motorola MVME162 User Manual page 100

Table A-4. Serial Port B EIA-530 Interconnect Signals (Continued)
Pin Signal
Number Mnemonic
4 RTS_A
5 CTS_A
6 DSR_A
7 SIG GND
8 DCD_A
9 RxC_B
10 DCD_B
11 TxCO_B
12 TxC_B
13 CTS_B
14 TxD_B
15 TxC_A
16 RxD_B
17 RxC_A
18 RTS_B
19 LL_A
20 DTR_A
21 RL_A
22 DSR_B
MVME162/D2
Signal Name and Description
Request to Send (A). Output from DTE to DCE when required to transmit
a message.
Clear to Send (A). Input to DTE from DCE to indicate that message
transmission can begin.
Data Set Ready (A). Input to DTE from DCE to indicate that the DCE is
ready to send or receive data. In DCE configuration, always true.
Signal Ground. Common return line for all signals.
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.
Receive Signal Element Timing—DCE (B). Control signal that clocks
input data.
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.
Transmit Signal Element Timing—DTE (B). Control signal that clocks
output data.
Transmit Signal Element Timing—DCE (B). Control signal that clocks
input data.
Clear to Send (B). Input to DTE from DCE to indicate that message
transmission can begin.
Transmit Data (B). Data to be transmitted; output from DTE to DCE.
Transmit Signal Element Timing—DCE (A). Control signal that clocks
input data.
Receive Data (B). Data which is demodulated from the receive line; input
from DCE to DTE.
Receive Signal Element Timing—DCE (A). Control signal that clocks
input data.
Request to Send (B). Output from DTE to DCE when required to transmit
a message.
Local Loopback (A). Reroutes signal within local DCE. In DTE
configuration, always tied inactive and driven false. In DCE
configuration, ignored
Data Terminal Ready (A). Output from DTE to DCE indicating that the
DTE is ready to send or receive data.
Remote Loopback (A). Reroutes signal within remote DCE. In DTE
configuration, always tied inactive and driven false. In DCE
configuration, ignored.
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.
EIA-530 Connections
A-5
A