3Com NETBuilder II DPE 80 Manual page 12

1-6 C 1: I
HAPTER NSTALLING THE
DPE M
ODULE
To CONSOLE port
9-pin female connector
Receive Data
Transmit Data
Carrier Detect
Clear to Send
Request to Send
Signal Ground
Data Terminal Ready
Data Set Ready
Figure 1-2 9-pin to 25-pin Terminal Cable (Null Modem-Type)
To CONSOLE port
9-pin female connector
Transmit Data
Receive Data
Request to Send
Carrier Detect
Clear to Send
Signal Ground
Data Set Ready
Data Terminal Ready
Figure 1-3 9-pin to 25-pin Modem Cable (Straight-Through-Type)
2 Connect one end of the cable to the CONSOLE port on the DPE front panel and
the other end to the serial port on the back of your console.
5 4 3 2 1
9 8 7 6
25-pin male or female connector
Name Abbr Pin
RxD
2
TxD
3
CD
1
CTS
8
RTS
7
GND
5
DTR
4
DSR
6
5 4 3 2 1
9 8 7 6
Name Abbr Pin Pin
TxD 3
RxD 2
RTS 7
CD 1
CTS 8
GND 5
DSR 6
DTR 4
To terminal
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
Pin Abbr Name
2 TxD
Transmit Data
3
RxD Receive Data
4 RTS Request to Send
5 CTS
Clear to Send
8
CD Carrier Detect
7 GND Signal Ground
6 DSR
Data Set Ready
20 DTR
Data Terminal Ready
To modem
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25
25-pin male connector
Abbr Name
3 RxD Receive Data
2 TxD Transmit Data
4 RTS Request to Send
8 CD Carrier Detect
5 CTS Clear to Send
7 GND Signal Ground
6 DSR Data Set Ready
20 DTR Data Terminal Ready