NetComm NCT240 - Manual (Page 31)

NetComm NCT240 Installation Guide Release 1.0
Figure 5-1. Connecting to the Punch-down Blocks
DB-9 Port Pin Assignments
EIA Circuit CCITT Signal Description Switch’s DB-9
DTE Pin #
PC DB-9 DTE Pin
#
BB 104
RxD (Received Data) 2 2
BA 103
TxD (Transmitted Data) 3 3
AB 102
SGND (Signal Ground) 5 5
Console Port to 9-Pin DTE Port on PC
Switch’s 9-pin Serial Port CCITT Signal PC’s 9-pin DTE Port
2 RxD <----------RXD ------------ 3 TxD
3 TxD -------------TXD -----------> 2 RxD
5 SGND ------------SGND ----------- 5 SGND
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