Multi-configurable serial port – Verilink AS56/56Plus (896-502588-001) Product Manual User Manual
Page 117
Multi-Configurable Serial Port
AS56 and AS56
Plus
User Manual
A-3
Multi-Configurable Serial Port
The Access Syst em56 Serial Port is a multi-configurable port in which
the interface may be defined as either V.35, RS-530/RS-422A, or RS-232.
The serial port interface provides a DB-25 pin receptacle. The pin
assignments for the serial port interface are listed below.
Pin
RS23
RS53
V.35
1
chassis
chassis
chassis
2
TXD out
TXD-
TXD-
3
RXD in
RXD-
RXD-
4
RTS out
RTS-
RTS-
5
CTS in
CTS-
CTS-
6
DSR in
DSR-
DSR-
7
signal gn
signal gnd
signal gnd
8
DCD i
DCD-
DCD-
9
(voltage+)
RXC-
RXC-
10
(voltage-)
DCD+
not used
11
not used
EXT TXC+
EXT TXC+
12
not used
TXC+
RXC+
13
not used
CTS+
TXD+
14
not used
TXD+
TXC+
15
TXC in
TXC-
TXC-
16
not used
RXD+
RXD+
17
RXC in
RXC+
RXC+
18
not used
not used
not used
19
not used
RTS+
not used
20
DTR out
DTR-
DTR-
21
not used
not used
not used
22
(RI)
DSR+
not used
23
not used
DTR+
not used
24
EXT TXC out
EXT TXC-
EXT TXC-
25
not used
not used
not used