DEC VT420 - VT420 Rear Connector Panel and Loopback Connectors

Troubleshooting and Testing 15
If the test finds an error:
The screen displays the following message. See Table 2–3.
VT420 DEC-423 Port Error -- 5
COMM
1
2
1
2 1
Power
Cord
GSF_1448_89.DG
Comm1 Port
6-Pin, DEC-423
Connector
Comm2 Port
6-Pin, DEC-423
Connector
(Also, Printer Port)
Comm1 Port
6-Pin, DEC-423
Connector
Comm2 Port
6-Pin, DEC-423
Connector
(Also, Printer Port)
Power
Receptacle
Comm1
25-Pin, RS-232
Connector
From
Pin
2
4
6
12
To
Pin
3
5
20
19
To
Pin
15
8
22
17
From
Pin
1
2
3
To
Pin
6
5
4
Worldwide
North American
Loopback Connectors
6-Pin
(12-25083-01)
25-Pin
(12-15336-00)
Figure 2–2 VT420 Rear Connector Panel and Loopback Connectors