Connecting to LAN

The device provides up to four 10/100/1000Base-T (Gigabit Ethernet) RJ-45 ports and up to eight 10/100Base-TX (Fast Ethernet) RJ-45 ports for connection to the LAN. These Ethernet ports can operate in pairs (groups) to provide 1+1 port redundancy. In each pair, one port serves as the active port while the other as standby. When the active port fails, the device switches to the standby port.

The type and number of Ethernet ports depends on ordered hardware configuration.
The Fast Ethernet ports are available only on "pure" SBC Mediant 800 (i.e., without PSTN / Gateway interfaces).

By default, the Ethernet ports are grouped into pairs as shown in the following figure. You can change this port assignment, including assigning only a single port to an Ethernet Group. For more information, refer to the User's Manual.

LAN Port-Pair Groups and Web Interface String Names

These ports support half- and full-duplex modes, auto-negotiation, and straight or crossover cable detection.

Cable specifications:

Cable: Category 5e or Category 6 shielded twisted pair (STP) straight-through
Connector Type: RJ-45
Connector Pinouts:

RJ-45 Connector Pinouts for GbE/FE

Pin

Signal Name

1

Ethernet signal pair (10/100/1000Base-T)

2

3

Ethernet signal pair (10/100/1000Base-T)

6

4

Ethernet signal pair (1000Base-T)

5

7

Ethernet signal pair (1000Base-T)

8

Shield

Chassis ground

To connect the device to the LAN:
1. Connect the RJ-45 connector on one end of the Ethernet cable to one of the device's Ethernet ports, labeled GE (for Gigabit Ethernet ports) and FE (for Fast Ethernet ports).

Connecting the LAN Ports

2. Connect the other end of the cable to the Gigabit Ethernet network (for the GE ports) and/or Fast Ethernet network (for the FE ports).
3. For 1+1 LAN protection, repeat steps 1 and 2 for the standby port, but connect it to another network (in the same subnet).

If you are implementing LAN port-pair redundancy, make sure that each port in the Ethernet Group is connected to a different network (but in the same subnet).