Description 13
✏ NOTE
By default, the RJ-45 serial port is configured to support a DSR signal.
For serial devices that require a DSR signal (default), the J5A2 jumper must be configured in
position 3-4 (Figure 3, B).
For serial devices that require a DCD signal, the jumper must be in position 1-2 (Figure 3, A).
OM14126
DCD-DTR to Pin #7
62
5
DSR-DTR to Pin #7
62
5
C
AB
Figure 3. J5A2 Jumper Block for DSR Signal
For server applications that require a DB9 serial connector, you must use an 8-pin
RJ-45-to-DB9 adapter. The following table defines the pin-out required for the adapters to provide
RS232 support.
Table 3. Rear Serial 2 Port Adapter Pin-out
RJ-45 Signal Abbreviation DB9
1 Request to Send RTS 7
2 Data Terminal Ready DTR 4
3 Transmitted Data TD 3
4 Signal Ground SGND 5
5 Ring Indicator RI 9
6 Received Data RD 2
7 DCD or DSR DCD/DSR 1 or 6
8 Clear To Send CTS 8