ITU-TSS EIA
Signal Name/
ITU-TSS Signal Name/
Description
(CCITT) RS-232
Abbreviation for
V.35
Abbreviation for
V.24
Pin
EIA RS-232
Pin(s)
ITU-TSS V.35
Circuit
(ME375) (ME375)
(ME376) (ME376)
101
1
Protective Ground
A
Frame Ground (FGND)
Chassis ground. May be
(PGND)
connected to or isolated
from Signal Ground by
setting the GROUND
jumper.
102
7
Signal Ground (SGND)
B
Signal Ground (SGND)
Signal ground. May be
connected to or isolated
from Protective/Frame
Ground by setting the
GROUND jumper.
103
2
Transmit Data (TD)
P
Send Data A (SD A)
Serial digital data received
S
Send Data B (SD B)
from the DTE. In
synchronous applications,
the data transitions must
occur on the rising edge of
the transmit clock.
104
3
Receive Data (RD)
R
Receive Data A (RD A)
Serial digital data sent to
T
Receive Data B (RD B)
the DTE. In synchronous
applications, the data
transitions occur on the
rising edge of the clock.
105
4
Request to Send (RTS)
C
Request to Send (RTS) The DTE raises this signal
to the A/S2W SHM when it
wants to transmit data.
106
5
Clear to Send (CTS)
D
Clear to Send (CTS)
The A/S2W SHM raises
this signal to the DTE
when it is ready to receive.
29
APPENDIX: Pinouts
Appendix: Pinouts
The table below and on the following pages describes the leads and signals
supported by the two models of the Async/Sync 2-Wire Short Haul Modem.
Summary of Contents for ME375A-R2
Page 33: ...NOTES...
