Installation guide

2-10 A
LPINE
3800 S
ERIES
S
WITCH
H
ARDWARE
I
NSTALLATION
G
UIDE
I
NSTALLATION AND
S
ETUP
Appropriate cables are available from your local supplier. To make your own cables,
pinouts for a DB-9 male console connector are described in Tab le 2-1.
Figure 2-6 shows the pinouts for a 9-pin to 25-pin (RS-232) null-modem cable.
Figure 2-6: Null-modem cable pinouts
Table 2-1: Console Connector Pinouts
Function Pin Number Direction
DCD (data carrier detect) 1 In
RXD (receive data) 2 In
TXD (transmit data) 3 Out
DTR (data terminal ready) 4 Out
GND (ground) 5 -
DSR (data set ready) 6 In
RTS (request to send) 7 Out
CTS (clear to send 8 In
Screen
DTR
TxD
RxD
CTS
Ground
DSR
RTS
DCD
Cable connector: 9-pin female
Alpine
Cable connector: 9-pin female
PC-AT Serial Port
Screen
DCD
RxD
TxD
DTR
Ground
DSR
RTS
CTS
Shell
4
3
2
8
5
6
7
1
Shell
1
2
3
4
5
6
7
8
38_9pin