Installation guide

Connecting to the Network
3-22 Hardware Installation
Figure 3-12 Connecting a Twisted Pair Segment to the 1H582-25 or 1H582-51
3. Verify that a link exists by checking that the Link LED ➁ is ON (solid green). If the Link LED
is OFF, and the RX/TX LED
➂ is not blinking amber, perform the following steps until it is on:
a. Verify that the cabling used is Category 5 or better with an impedance between 85 and
111 ohms with a maximum length of 100 m (328 ft).
b. Verify that the device at the other end of the twisted pair segment is on and properly
connected to the segment.
c. Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts and
check the cable for continuity. Typically, a crossover cable is used between hub devices. A
straight-through cable is used to connect between switches or hub devices and an end user
(computer). Refer to Figure 3-13 and Figure 3-14 for four-wire RJ45 connections. Refer to
Figure 3-15 and Figure 3-16 for eight-wire RJ45 connections.
d. Ensure that the twisted pair connection meets the dB loss and cable specifications outlined
in the Cabling Guide. Refer to “Related Documents” in About This Guide for information
on obtaining this document.
➀
RJ45 Connector
➂
Receive/Transmit (RX/TX) LED
➁
Link LED
2
1
4
6
8
10 12 14 16
3
5
7
9 11 13 15
18
17
20
22
24
26 28 30 32
19
21
23
25 27 29 31
34
33
36
38
40
42 44 46 48
35
37
39
41 43 45 47
Reset
Console
PWR
CPU
1H582-51
2 4
1 3
Á
À
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3680-07