User manual Version 2.3
ABLELink
®
Ethernet-Serial Server GW21R
Pin#
RS-232
Full Duplex
RS-485
2 wire, Half Duplex
RS-485
4 wire, Full Duplex
1
DCD
N/A
N/A
2
RXD
N/A
N/A
3
TXD
DATA-
RXD-
4
DTR
N/A
(reserved)
TXD-
5
SG (Signal Ground)
SG (Signal Ground)
SG (Signal Ground)
6
DSR
N/A
N/A
7
RTS
N/A
N/A
8
CTS
DATA+
RXD
+
9
RI
N/A(reserved for Atop
devices)
TXD+
A.3.2 Ethernet Port (RJ-45)
(1). Category 5 UTP cable, 8 core wire.
(2). RJ45 Connector.
(3). RJ45 Pin Assignment
Pin Assignment
568A
Definition
568B
Definition
Pin1
Green-White
Orange-White
Pin2
Green
Orange
Pin3
Orange-White
Green-White
Pin4
Blue
Blue
Pin5
Blue-White
Blue-White
Pin6
Orange
Green
Pin7
Brown-White
Brown-White
Pin8
Brown
Brown
Copyright © 2004 Atop Technologies, Inc.
All rights reserved. Designed in Taiwan.
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