CHAPTER5 Cabling the Device
Mediant 1000 Gateway & E-SBC | Hardware Installation Manual
● To protect against electrical shock and fire, use a minimum of 26-AWG wire size
to connect the FXO and FXS ports.
➢ To ground the device:
1. Connect an electrically earthed strap of 16 AWG wire (minimum) to the chassis' grounding
screw located on the rear panel, using the supplied washer.
Figure 5-1: Grounding the Device
2. Connect the other end of the strap to a protective earthing. This should be in accordance
with the regulations enforced in the country in which the device is installed. The grounding
screw must be connected to the equipotential grounding bus bar located in the
Telecommunication rack, using a wire of 6 mm
2
surface wire. This line must be connected
to the equipotential bus bar of the electrical circuit board located in the
Telecommunication room, using a stranded cable with surface area of 25 mm
2
. The length
of this cable must be as short as possible (no longer than 3 meters).
Connecting to LAN with Port-Pair Redundancy
The LAN ports are provided on the CRMX and SWX LAN Expansion modules (see CRMX Module
and Section SWX LAN Expansion Module, respectively). These LAN ports can operate in pairs
(Ethernet 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. By default, the Ethernet ports are grouped into pairs, as shown in the following figure.
However, 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.
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