5
Equinox ESP 10/100 Serial Hub Product Installation Guide
1.2 Device Cabling
Figures 3 through 5 show the pin assignments required for a cable
connection between the ESP RJ-45 ports and your devices.
Figure 3. Cable Pin Assignments for ESP RJ-45 to Terminal/Printer
Figure 4. Cable Pin Assignments for ESP RJ-45 to PC DB-9
Figure 5. Cable Pin Assignments for ESP RJ-45 to Modem DB-25
Pin #
8
7
6
5
4
3
2
1
Pin #
4
6
7
3
2
20
8
5
To ESP RJ-45 Port
Clear to Send
Data Terminal Ready
Transmit Data
Receive Data
Data Carrier Detect
Data Set Ready
Request to Send
Signal Ground
To Terminal / Printer
Request to Send
Data Set Ready
Signal Ground
Data Terminal Ready
Data Carrier Detect
Clear to Send
Receive Data
Transmit Data
DB-25 (FEMALE)
1
o
o o o o o o o
Cable End View
DB-25 (MALE)
1
........
1
Cable End View
RJ-45 (Plug)
Pin #
8
7
6
5
4
3
2
1
Pin #
7
6
5
2
3
4
1
8
To ESP RJ-45 Port
Clear to Send
Data Terminal Ready
Transmit Data
Receive Data
Data Carrier Detect
Data Set Ready
Request to Send
Signal Ground
To PC (DB-9)
Request to Send
Data Set Ready
Signal Ground
Data Terminal Ready
Data Carrier Detect
Clear to Send
Receive Data
Transmit Data
.
.
1
Cable End View
RJ-45 (Plug)
..........
Cable End View
DB-9 (FEMALE)
1
o o o o o
o o o o
Pin #
8
7
6
5
4
3
2
1
Pin #
5
20
7
2
3
8
6
4
To ESP RJ-45 Port
Clear to Send
Data Terminal Ready
Transmit Data
Receive Data
Data Carrier Detect
Data Set Ready
Request to Send
Signal Ground
To Modem
Clear to Send
Data Terminal Ready
Signal Ground
Transmit Data
Receive Data
Data Carrier Detect
Data Set Ready
Request to Send
Cable End View
RJ-45 (Plug)
Cable End View
DB-25 (MALE)
.........
