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APPENDIX A: Cable Specifications
Fig. A-2. DB9 on Device to RJ-45 on Ethernet Print Server.
Fig. A-3. DB25 on Device to DB25 (UNIPORT-DB) on Print Server.
1
2
3
4
5
6
7
8
20
1
2
3
4
5
6
7
8
20
Frame Ground
Transmit Data
Receive Data
Request To Send
Clear To Send
Data Set Ready
Signal Ground
Data Carrier Detect
Data Terminal Ready
DB25 Plug
Frame Ground
Receive Data
Transmit Data
Request To Send
Clear To Send
Data Set Ready
Signal Ground
Data Carrier Detect
Data Terminal Ready
DB25 Plug
PCs/Printers
(DTE Device)
Ethernet Print Server
(DCE Device)
1
2
3
4
5
6
7
8
20
1
2
3
4
5
6
7
8
20
1
6
8
2
3
4
5
2
3
5
6
1
2
3
5
6
1
4
Data Carrier Detect
Data Set Ready
Clear To Send
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
DB9 Plug
No Connection
Data Set Ready
No Connection
Transmit Data
Receive Data
Data Terminal Ready
Signal Ground
RJ45 Plug
PCs
(DTE Device)
Ethernet Print Server
(DCE Device)
Pins 1 and 4 are jumpered on the RJ45 plug side.
Pins 1, 6, and 8 are jumpered on the DB9 plug side.