ADC HRM-238 List 2, Руководство пользователя

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November 18, 2005 Chapter 2: Installation
LTPH-UM-1315-01 2-7
Connect to a LAN or Interconnect Shelves
Use the 10BaseT or 10Base2 connector ( Figure 2-4 ) when required for access using a LAN or for interconnecting
multiple shelves. Consult the appropriate user manual for the HMU-319 management unit and for the software used
in the application. See
Table 2-3 and Table 2-4 for information on 10Base2 or 10BaseT.
Figure 2-4. Using BNC Connector
10Base2 connections may be “hubbed” (daisy-chained) up to 31 times using a BNC T-connector (included) to link
chains with a BNC 50
Ω
terminator (included) at the end of the chain.
Table 2-3. 10Base2 LAN Connectors J2 and J6
Table 2-4. 10BaseT LAN Connectors J1 and J5
When the 10Base2 Ethernet interface is used, shielded CAT 5 cables must be used to meet regulatory
requirements.
Shield LAN-, CDS
Center LAN+
Pin Color Purpose
1 White/Blue TD+
2 Blue TD-
3 White/Orange RD+
4 N/A
5 N/A
6 Orange RD-
7 N/A
8 N/A
10Base2 (BNC)
management port
connector (J2)
H0549-B
10BaseT
RJ-45 (J5)
management
port connector
10BaseT
RJ-45 (J1)
management
port connector
10Base2 (BNC)
management port
connector (J6)