Microsens MS453510 - Manual (Page 13)

9
Troubleshooting
This section is intended to help user to solve the most common problems on the4
10/100/1000TX + 1 Mini-GBIC Switch.
Incorrect connections
The switch port can auto detect straight or crossover cable when the switch link
with other Ethernet device. For the RJ-45 connector should use correct UTP or
STP cable, 10/100Mbps port use 2 pairs twisted cable and Gigabit 1000T port
use 4 pairs twisted cable. If the RJ-45 connector is not correct pin on right
position then the link will fail. For fiber connection, please notice that fiber cable
mode and fiber module should be match.
 Faulty or loose cables
Look for loose or obviously faulty connections. If they appear to be OK, make
sure the connections are snug. If that does not correct the problem, try a different
cable.
 Non-standard cables
Non-standard and miss-wired cables may cause numerous network collisions
and other network problem, and can seriously impair network performance. A
category-5 cable tester is a recommended tool for every 100Base-T network
installation.
RJ-45 ports: use unshielded twisted-pair (UTP) or shield twisted-pair ( STP )
cable for RJ-45 connections: 100Ω Category 3, 4 or 5 cable for 10Mbps