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eH880 and ACR880 SDE Setup Manual
Version 1.4
Page 11 of 20
www.acs.com.hk
4.0. Device Connection to Host Computer
4.1. Ethernet
4.1.1. Cable
Restrictions
The eH880/ACR880 uses an RJ45 straight cable to connect to a router/ hub. However, a crossover
RJ45 cable is used when the device is directly connected to the host pc. See Appendix A for cable
types.
To connect the PC Linux to the device using the RJ45 cable, insert both ends of the cable jack to the
designated ports found on each party. From the command prompt or terminal prompt, key-in “
telnet
<device IP>
” for Windows/Linux, or “
SSH <IP>
” for Linux.
4.1.2.
RJ45 Cable Types
Cross over cable
Straight cable
Pin ID
Side A
Side B
Side A
Side B
1 Orange-white
Green-white
Orange-white
Orange-white
2 Orange Green Orange Orange
3 Green-white
Orange-white
Green-white Green-white
4
Blue Brown-white
Blue Blue
5 Blue-white
Brown Blue-white Blue-white
6
Green Orange
Green Green
7 Brown-white
Blue
Brown-white Brown-white
8
Brown Blue-white
Brown Brown
Table 1:
RJ45 Cable Types
Figure 1:
Cross-Over Cable
Figure 2:
Straight Cable