Abeo LAN over G.703 Extender
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3.1.8 MAC FCS
On older units, bit-switch 7 to enabled the transmission of the MAC FCS. This function has
now been disabled and the MXU9020 always strips the MAC FCS from the Ethernet packet.
3.2 Connecting up
Safety notice:
Ports that are identified as SELV in this manual should only be connected to
SELV ports on other equipment in accordance with EN 60950 clause 2.3.
Step 1: Mounting
The MXU9020 is housed in a convenient 1U table top enclosure. 19 inch rackmount options
are also available, as well as rack nests for two or 18 units.
Step 2: Set up bit-switches
These switches are located on the base of the unit and are used to configure the unit.
Step 3: LAN ports
Connect the MXU9020 to the LAN ports using the four labelled RJ-45 ports on the rear panel.
Step 4: Power Supply
Finally, connect the mains power lead and re-check all connections for security. Then turn on
the power supply. Check the rear panel status LED to ensure that it is continously lit green.
Warning
: Do not connect the MXU9020 to excessive voltage. Read the safety information
before continuing
3.3 Optional rackmounting
Rackmounting kits may be used to mount two MXU9020 units side by side in a 19” rack.
The rackmount kit (MTU9000M-RACK) has a recessed plate to permit fibre bends to be made
within the envelope of a 19” rack. It also has a single cut-out for all connections to the rear
of the MXU9020. The installation method is the same in all cases.
First remove the two rear panel screws securing each unit’s lid. Fasten the two MXU9020
units to the rackmount adpator plate using the screws that you have removed, as shown in
the illustrations on the next page.
Then secure the rack mounting plate complete with the two MXU9020 units to the 19” rack
using the locating holes at the ends of the adaptor plate. If you have set the bit-switches on
the base plate before fixing units to the adaptor plate, check that the settings are still
correct.
Summary of Contents for Abeo G.703 LAN
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