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6 Equinox ESP Multi-Interface Serial Hub Product Installation Guide
1.3 RS-232 Modular Adaptors and Cables
RS-232 modular adaptors are available from Equinox to convert RJ-45
modular jacks to DB-25 or DB-9 connectors. These modular adaptors,
used with the 10-wire reversing modular cables, perform the same
functions as shown in Figures 3 through 5. Figure 6 shows the RS-232
modular adaptors available from Equinox.
Figure 6. RS-232 Modular Adaptors
Table 4 lists the modular cables that are available from Equinox to use
with the modular adaptors shown in Figure 6.
Part No. Description
690252 10-foot 10-Wire Reversing Modular Cable
690253 25-foot 10-Wire Reversing Modular Cable
690254 75-foot 10-Wire Reversing Modular Cable
Table 4. Available Reversing Modular Cables
The adaptors and cables listed above may be used to attach devices to the
ESP RJ-45 ports.
If a customer-supplied modular cable is used, make sure the cable is
reversing. See Figure 7.
Connect to
Modems & Multiplexers:
210097 [DB-25 DTE Male]
210098 [DB-25 DTE Female]
DB-25 RS-232
RJ-45 10-PIN
4
20
8
3
2
7
5
RTS
DTR
DCD
RD
TD
GND
CTS
RTS
DTR
DCD
RD
TD
GND
CTS
1
1
0
10
9
7
6
5
4
1
Connect to
Modems & Multiplexers:
210101 [DB-9 Male]
DB-25 RS-232
RJ-45 10-PIN
7
4
1
2
3
5
8
RTS
DTR
DCD
RD
TD
GND
CTS
RTS
DTR
DCD
RD
TD
GND
CTS
1
1
0
10
9
7
6
5
4
1
Connect to
Terminals & Printers:
210099 [DB-25 DCE Male]
210100 [DB-25 DCE Female]
DB-25 RS-232
RJ-45 10-PIN
5
8
20
2
3
7
4
6
RTS
DTR
DCD
RD
TD
GND
CTS
CTS
DCD
DTR
TD
RD
GND
RTS
DSR
1
1
0
10
9
7
6
5
4
1
Connect to
Personal Computers:
210102 [DB-9 Female]
DB-25 RS-232
RJ-45 10-PIN
RTS
DTR
DCD
RD
TD
GND
CTS
CTS
DCD
DTR
TD
RD
GND
RTS
DSR
1
1
0
10
9
7
6
5
4
1
8
1
4
3
2
5
7
6