RAD Data comm ASMi-31 - Manual (Page 57)

General D-1
Appendix D
DTE Interface Connectors
D.1 General
Table D-1 provides detailed information about each DTE interface
connector.
Table D-1 DTE Interface Signal Assignments
RS-232 V.35 EIA-530 X.21
Signal
Function
DB-25
Stand-
alone
and
Frame
DB-25
Frame
34-pin
Standalone
Pin Circuit
DB-25
Standalone
and Frame
Pin Circuit
DB-25
Frame
DB-15
Standalone
Pin Circuit/
(Function)
Description
Protective
Ground 1 1 A Frame 101 1 1 1 -
[SHIELD]
Chassis ground.
May be
isolated from
Signal Ground.
See Table 2-1.
Signal Ground 7 7 B Signal 102
Ground
7 AB 7 8 -
[GND]
Common
Signal and DC
power supply
ground.
Transmitted
Data 2 11
9 S TD(B) 103
P TD(A) 103 2 BA(A)
14 BA(B)
2
14 2 T(A)
9 T(B)
[TRANSMIT]
Serial digital
data from DTE.
The data
transitions must
occur on the
rising edge of
the transmit
clock.
Received
Data 3 12
13 R RD(A) 104
T RD(B) 104 3 BB(A)
16 BB(B)
3
16 4 R(A)
11 R(B)
[RECEIVE]
Serial digital
data at the
output of the
modem
receiver. The
data transitions
occur on the
rising edge of
the receive
clock.
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