Ethernet Switch Boards - Nortel Media Gateway 3500 Installation, Operation And Maintenance Manual

2.6

Ethernet Switch Boards

To prevent broadcast storms, avoid external interconnection between the
links of the two Ethernet Switches.
Note:
The ES/4411 Ethernet Switch board, based on CPC4411, complies with cPCI Extended
Fabric Board standards utilizing a PICMG 2.16-compliant packet switching matrix onto a
cPCI midplane. It enables the use of embedded, fault-tolerant, switched network
architecture for higher system performance and reliability and enables inter-shelf
communication.
The Ethernet Switch board is accompanied by the Ethernet Switch RTM. For more details
refer to 'ES/4411 RTM' on page 43.
The figure below shows the front panel view of the Ethernet Switch board.
The Ethernet Switch board provides the following features:
24 cPSB-compliant 10/100 Base-TX ports (11 are connected to the Media Gateway
3500 midplane slots, the remainder are for future use)
Two 1000 Base-SX (Gigabit fiber-optic) ports; where only one port is connected to
external equipment.
An out-of-band 10/100 Base-TX management port provided on the front panel
Each of the Ethernet Switch boards contains an RS-232 console port 6-pin female RJ-11
connector. This port is used for maintenance only.
The corresponding cable utilizes a 6-pin male RJ-11 connector and female DB-9
connector. The signal interface of the connector is according to the table below.
Installation, Operation, Maintenance Manual
The Ethernet Switch boards are placed in slots 3 and 4 only.
WARNING
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Media Gateway 3500
Document # LTRT-90704