RuggedCom RSG2288 Manual De Usuario

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Installation 
2.7  Ethernet Ports 
2.7.1  RJ45 Twisted-Pair Data Ports 
RSG2288 Ethernet switches are equipped with up to nine 10/100/1000BaseTX 
ports that allow connection to standard CAT-5 UTP cable with RJ45 male 
connectors. All RS2000 series RJ45 RuggedSwitch products feature auto-
negotiation, auto-polarity, and auto-crossover functions. The RJ45 receptacles 
can also accept and take advantage of screened (commonly known as 
“shielded”) cabling. Figure 25 shows the RJ45 port pins configuration. 
 
 
Figure 25 : RJ45 port pin configuration. 
 
Pin 1 
Pin 8 
10/100BaseTx Pin-out 
Pin Description 
1 RX 
2 RX 
3 TX 
6 TX 
4, 5, 7, 9 
NC 
Table 7: RJ45 Ethernet pin assignment 
 
2.7.2  Gigabit Ethernet 1000Base-TX Cabling Recommendations 
The IEEE 802.3ab Gigabit Ethernet standard defines 1000 Mbit/s Ethernet 
communications over distances of up to 100 meters using 4 pairs of category 5 
(or higher) balanced, unshielded twisted-pair cabling. For wiring guidelines, 
system designers and integrators should refer to the Telecommunications 
Industry Association (TIA) TIA/EIA-568-A wiring standard that characterizes 
minimum cabling performance specifications required for proper Gigabit Ethernet 
operation. To ensure reliable, error-free data communications, new and pre-
existing communication paths should be verified for TIA/EIA-568-A compliance.  
Table 8 summarizes the relevant cabling standards. 
 
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RSG2288 Installation Guide rev103