RAD Data comm ASMi-31 Manuale Utente
General
D-1
Appendix D
DTE Interface Connectors
DTE Interface Connectors
D.1 General
Table D-1 provides detailed information about each DTE interface
connector.
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
Ground
1
1
A Frame 101
1
1
1
-
[SHIELD]
Chassis ground.
May be
isolated from
Signal Ground.
See Table 2-1.
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.
Signal and DC
power supply
ground.
Transmitted
Data
Data
2
11
9
9
S TD(B) 103
P TD(A) 103
P TD(A) 103
2
BA(A)
14
BA(B)
2
14
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.
data from DTE.
The data
transitions must
occur on the
rising edge of
the transmit
clock.
Received
Data
Data
3
12
13
13
R RD(A) 104
T RD(B) 104
T RD(B) 104
3
BB(A)
16
BB(B)
3
16
16
4
R(A)
11
R(B)
[RECEIVE]
[RECEIVE]
Serial digital
data at the
output of the
modem
receiver. The
data transitions
occur on the
rising edge of
the receive
clock.
data at the
output of the
modem
receiver. The
data transitions
occur on the
rising edge of
the receive
clock.
Order from: Cutter Networks
Ph:727-398-5252/Fax:727-397-9610
www.bestdatasource.com