Eia-530A-To-X.21 Dte Adapter Cable - Paradyne 9161 Reference Manual

EIA-530A-to-X.21 DTE Adapter Cable

9161-A2-GH30-20
Used as an interface between the 25-position Sync Data Port connector and a
DTE's X.21 connector.
530 DB25
Signal
Plug
TXD-A 2
TXD-B 14
RXD-A 3
RXD-B 16
RXC-A 17
RXC-B 9
RTS-A 4
RTS-B 19
RLSD-A 8
RLSD-B 10
Sig. Common 7
TT-A 24
TT-B 11
The following table provides the pin assignments for the 25-position Port 1 or
Port 2 connector/interface and a DTE's 15-position X.21 connector/interface.
Signal
Transmit Data ( TXD/ TD )
Received Data ( RXD/ RD )
Request to Send ( RTS )
Signal Ground/Common
Data Channel Received Line
Signal Detector/ Receiver Ready
( RLSD/ RR )
Receiver Signal Element Timing
( RXC ) — DCE Source
Transmitter Signal Element Timing/
Terminal Timing ( TT ) —
DTE Source
September 1997
Cables, Connectors, and Pin Assignments
DB15 X.21
Signal
Socket
2 TD-A
9 TD-B
4 RD-A
11 RD-B
6 RXC-A
13 RXC-B
3 RTS-A
10 RTS-B
5 RR-A
12 RR-B
8 Sig. Common
7 TT-A
14 TT-B
496-15146
25-Pin
ITU/ Plug
Pin # Direction
CCITT #
103 2 ( A ) To DCE
14 ( B )
104 3 ( A ) From DCE
16 ( B )
105 4 ( A ) To DCE
19 ( B )
102 7 —
109 8 ( A ) From DCE
10 ( B )
115 17 ( A ) From DCE
9 ( B )
113 24 ( A ) To DCE
11 ( B )
15-Pin
Socket
Pin #
2 (A),
9 (B)
4 (A),
11 (B)
3 (A),
10 (B)
8
5 (A),
12 (B)
6 (A),
13 (B)
7 (A),
14 (B)
E-11