14
March
2005
BSX8-A2-GZ40-10
10/100/1000BaseT Connectors
The uplink ports are 8-pin unkeyed modular jacks for a 10/100/1000BaseT
interface. The MGMT port is an 8-pin modular jack supporting 10/100BaseT.
DB9 to RJ45 Adapter Pinouts
To connect the COM port to the DB9 serial port of a PC, use an adapter wired as
shown:
Pins not shown are unused.
Table 3. 10/100/1000 Pinouts
Signal
Pin
Transmitted Data +
1
Transmitted Data –
2
Received Data +
3
Unused
4
Unused
5
Received Data –
6
Unused
7
Unused
8
97-15449
Pin 1
Pin 8
Table 4. DB9 to RJ45 Adapter Pinouts
Pin
RJ45 Port
Direction
PC RS232 Serial Port
Pin
1
Transmit Data
TxD
→
RxD
Receive Data
2
2
Data Set Ready
DSR
←
RTS
Request to Send
7
4
Receive Data
RxD
←
TxD
Transmit Data
3
5
Ground
GND
↔
GND
Ground
5
6
Data Terminal Ready
DTR
→
CTS
Clear to Send
8
