Vanguard 300 CTP Cabling
On the Vanguard 300, Port 4 uses a 6-pin modified modular jack (RJ-11/MMJ) as
its connector (also referred to as a DECconnect connector). The cable can be a flat
ribbon telephone cable with a recommended length of 6 to 10 feet.
Vanguard 300 Cabling Pinouts
The pinout on the connector follows:
Pin
Signal
1
DSR (output)
2
RxD (output)
3
Signal ground
4
Signal ground
5
TxD (input)
6
DTR (input)
Vanguard 305 CTP Cabling
On the Vanguard 305, Port 4 uses a straight-through 8-conductor RJ45 cable (e.g.,
Inmac P/N Q0462-1 or Black Box P/N RM-EL08MS-07. An RJ45 to DB25
(female) adapter (e.g., Inmac P/N Q0352-2 or Black Box P/N RQ-FA027) can be
constructed using the following pinout information:
Vanguard 305 Cabling Pinouts
RJ45 Pin No.
Signal
DB25 Pin No.
1
Not used
5
2
DTR (input)
6
3
TxD (input)
3
4
Signa l ground
7
5
Signal ground
7
6
RxD (output)
2
7
DCD (output)
20
8
Not used
4
