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Installation and Replacement 3-11
Installing The Vanguard 6435/6455
DB25 V.24 Pinouts (with DIM in DTE position)
Pin ITU Circuit I/O Signal Name
1 --- ----- Protective Ground
2 103 OUTPUT Transmitted Data
3 104 INPUT Received Data
4 105 OUTPUT Request To Send
5 106 INPUT Clear To Send
6 107 INPUT Data Set Ready
7 102 ----- Signal Ground
8 109 INPUT Data Carrier Detect
14 --- OUTPUT Data Restraint Out
15 114 INPUT Transmitted Clock
16 117 INPUT Standby Indicator
17 115 INPUT Received Clock
18 141 OUTPUT V54 Loop 3
20 108/2 OUTPUT Data Terminal Ready
21 140 OUTPUT V54 Loop 2
22 125 INPUT Ring Indicator
24 113 OUTPUT External Tx Clock
25 142 INPUT Test Indicator
DB25 V.35/V.36 Pinouts
Pin Signal DCE Position DTE Position
1 GND ------- -------
2 TXDA IN OUT
3 RXDA OUT IN
4 RTS IN OUT
5 CTS OUT IN
6 DSR OUT IN
7 SIGGND ------- -------
8 DCD OUT IN
14 TXDB IN OUT
15 TXCA OUT IN
16 RXDB OUT IN
17 RXCA OUT IN