The V.36/Rs-449 Interface - IBM PCI WAN 2 Port S91 Installation Manual

The V.36/RS-449 Interface

The pin-out assignments for the V.36/RS-449 interface are shown in the
following diagram.
The signal definitions and names are listed in Table 8 below.
Pin # Signal
Case PGND
4 TXD+
5 TRXC+
6 RXD+
7 RTS+
8 RTXC+
9 CTS+
10 TEST
11 DSR+
12 DTR+
13 DCD+
14 RLB
15 RI
17 CLK+
18 TI
19 GND
22 TXD-
23 TRXC-
24 RXD-
25 RTS-
26 RTXC-
27 CTS-
29 DSR-
30 DTR-
31 DCD-
35 CLK-
PG N D
TXD+
TRXC+
RXD+
RTS+
RTXC+
CTS+
TEST
DSR+
DTR+
DCD+
RLB
RI
C L K +
TI
G N D
Figure 12: V.36/RS-449 Interface
Name
Protective Ground
Transmit Data
Transmit Clock (DCE)
Receive Data
Request to Send
Receive Clock (DCE)
Clear to Send
Local Loopback Activation
Data Set Ready
Data Terminal Ready
Data Carrier Detect
Remote Loopback
Ring Indicator
Transmit Clock (DTE)
Test Indicator
DTE Common Return
Transmit Data
Transmit Clock (DCE)
Receive Data
Request to Send
Receive Clock (DCE)
Clear to Send
Data Set Ready
Data Terminal Ready
Data Carrier Detect
Transmit Clock (DTE)
Table 8: V.36/RS-449 Interface Signals
1
20
TXD-
TRXC-
RXD-
RTS-
RTXC-
CTS-
DSR-
DTR-
DCD-
C LK -
37
19
Direction
Common
Output
Input
Input
Output
Input
Input
Output
Input
Output
Input
Output
Input
Output
Input
Common
Output
Input
Input
Output
Input
Input
Input
Output
Input
Output
17 VHSI Port Interface Specifications
CCITT #
101
103A
114A
104A
105A
115A
106A
141A
107A
108A
109A
140A
125A
113A
142A
102A/B
103B
114B
104B
105B
115B
106B
107B
108B
109B
113B