Installation manual

3-12 Installation and Replacement
Installing The Vanguard 3400 Series
These tables describe the DB25 connector pinouts for port 1 and any 2-Port Serial
Data Card ports:
Vanguard 3400 Series Adapter Cables
Part Number
Modified fro
m
Product Code
Description
80113 15’ DB25M–DB25F Straight Cable, V.24/RS232
92089 7’ DB25M–DB15F Custom Cable, V.11/X.21
91918 7’ DB25M–DB15M Custom Cable, V.11/X.21
92104 7’ DB25M–V.35F Custom Cable, V.35 or V.36
91917 7’ DB25M–M34M Custom Cable, V.35 or V.36
DB25 V.24 Pinouts (DCE)
Pin ITU Circuit I/O Signal Name
1 --- ----- Protective Ground
2 103 INPUT Transmitted data
3 104 OUTPUT Received data
4 105 INPUT Request To Send
5 106 OUTPUT Clear To Send
6 107 OUTPUT Data Set Ready
7 102 ----- Signal Ground
8 109 OUTPUT Data Carrier Detect
14 --- INPUT Data Restraint Out
15 114 OUTPUT Transmitted Clock
16 --- ----- N/C
17 115 OUTPUT Received Clock
18 --- INPUT External Rx Clock
20 108/2 INPUT Data Terminal Ready
21 --- ----- N/C
22 125 OUTPUT Ring Indicator
24 113 INPUT External Tx Clock
25 142 INPUT Make Busy