Ericsson ECN330 - Page 16

Introduction to the ECN330-switch
10 1553-KDU 137 365 Uen D 2006-06-16
Table 1 DB-9 Port Pin Assignments
Table 2 Console Port to 9-Pin DTE Port
Table 3 Console Port to 25-Pin DTE Port
EIA
Circuit
CCITT
Signal
Description ECN330’s DB9
DTE Pin #
PC DB9
DTE Pin #
PC DB25
DTE Pin #
BB 104 RxD (Received Data) 2 2 3
BA 103 TxD (Transmitted Data) 3 3 2
AB 102 SG (Signal Ground) 5 5 7
No other pins are used.
ECN330’s 9-
Pin Serial Port
Null Modem PC’s 9-Pin
DTE Port
2 RXD <---------TXD ------------ 3 TXD
3 TXD -----------RXD ----------> 2 RXD
5 SGND -----------SGND ---------- 5 SGND
No other pins are used.
ECN330’s 9-
Pin Serial Port
Null Modem PC’s 25-Pin
DTE Port
2 RXD <---------TXD ------------ 2 TXD
3 TXD -----------RXD ----------> 3 RXD
5 SGND -----------SGND ---------- 7 SGND
No other pins are used.