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AT-iMG646xx Series Intelligent Multiservice Gateway and AT-EN646 Enclosure Installation Guide
Section I: Outdoor Installation 47
10. Trim the wire ties close to the cables.
11. Put the cover onto the splice tray.
12. Temporarily secure the splice tray to the inside of the inner cover with
electrical tape until the gateway is installed, as shown in Figure 24.
Note
In cold climates, Allied Telesis recommends that you use 3M 3723
Cold Temp Tape.
Figure 24. Securing the Metal Splice Tray
Note
The AT-iMG646BD-ON WAN module has a receive sensitivity of -3
dBm to -32 dBm at 1550 nm. After the fiber pigtail is installed and
before you plug the pigtail into the gateway, please check the power
of the optical input signal. The power at 1550 nm should fall within
the receive sensitivity specification. If the power is too high, an
optical attenuator is needed in the link. If the power is too low, you
must trace the optical path to determine the cause of the excess
loss.
Note
The AT-iMG646PX-ON WAN module has a receive sensitivity of -3
dBm to -26.5 dBm at 1490 nm. After the fiber pigtail is installed and
before you plug the pigtail into the gateway, please check the power
of the optical input signal. The power at 1490 nm should fall within
the receive sensitivity specification. If the power is too high, an
optical attenuator is needed in the link. If the power is too low, you
must trace the optical path to determine the cause of the excess
loss.
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