Accton Technology VM2548 User Manual download pdf (Page 39)

4-1

Chapter 4: Making Network Connections

Twisted-Pair Devices

Each device requires an unshielded twisted-pair (UTP) cable with RJ-45 connectors

at both ends. For 100BASE-TX connections, Category 5 cable is required; for

10BASE-T, Category 3, 4 or 5 cable can be used.

Cabling Guidelines

The RJ-45 ports on the switch support automatic MDI/MDI-X operation, so you can

use standard straight-through twisted-pair cables to connect to any other network

device (PCs, servers, switches, routers, or hubs).

Note: Auto-negotiation must be enabled for automatic MDI/MDI-X pinout configuration.

See Appendix B for further information on cabling.

Connecting to the Punch-down Blocks

The splitter connects directly to the PBX and building’s phone-line punch-down

block with RJ-21 connectors. Follow the steps listed below to connect the splitter.

1. Connect one RJ-21 flat cable from the PBX/MDF to the RJ-21 connector on the

back of the splitter labeled “PBX.”

2. Connect the other RJ-21 flat cable from the punch-down block to the RJ-21

connector on the front of the splitter labeled “Line.”

The RJ-21 port on punch-down blocks must be wired to match the pin assignments

of ports on the back of the splitter. To ensure that your cables are properly wired,

refer to “RJ-21 Port Pin Assignments” on page B-4.

Note: If you are using a patch panel, connect the RJ-21 ports on the back of the splitter

directly to the corresponding ports on the patch panel, and then manually wire

each pair (up to 24) from the patch panel to the punch-down blocks.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 71 72

No comments

Accton Technology VM2548 User Manual Page 39