RAD Data comm ASM-20 Spezifikationen Seite 55

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Seitenansicht 54
Installation and Operation Manual Appendix A Pinouts
ASM-40 Ver. 1.0 V.24, V.35, X.21 and RS-530 DTE Interface Connectors A-3
RS-232 V.35 RS-530 X.21 Description Signal
Function
DB-25
Standalone
and Card
Cage
DB-25
Card
Cage
34-Pin
Standalone
Pin Circuit
DB-25
Standalone and
Card Cage
Pin Circuit
DB-25
Card
Cage
DB-15
Standalone
Pin Circuit
(Function)
Transmit
Clock
15 14
10
Y SCT(A) 114
a SCT(B) 114
15
12
15
12
6 S(A)
13 S(B)
(Signal Timing)
A transmit data
rate clock for use
by an external data
source. Positive
clock translations
correspond to data
translations.
Receive Clock 17 23
22
V SCR(A) 115
X SCR(B) 115
17
9
A receive data rate
clock output used
by an external data
sink. Positive clock
translations
correspond to data
translations.
Local Analog
Loop
18 18 L and j 18
A control signal
input, which, when
on, sets ASM-40
into Local Analog
Loopback
(V.54 Loop 3).
Remote
Digital Loop
21 21 N and h 21
A control signal
input which, when
on, commands
ASM-40 to send a
remote Loopback
command (V.54
Loop 2) to the
remote ASM-40.
Test Indicator 25 25 n and k 25
A Control Signal
output from
ASM-40; positive
during any test
mode.
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