Allied Telesis AT-EN646, AT-iMG646PX-ON manual Connecting the Telephone Wires

Chapter 4: Installing the Gateway Outdoors

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-ONWAN 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.

2.Connect the pigtail cable from the splice tray to the fiber port, using the self-adhesive wire clips to secure the fiber cable to the gateway, as shown in Figure 39.

Adhesive Clips

Figure 39. Securing the Fiber Cable

Note

Connecting the Telephone Wires

It is critical that you maintain a minimum fiber bend radius of 1 in. when you route the fiber optic cables and mount them to the gateway with the self-adhesive wire clips.

To connect the telephone wires, perform the following procedure:

1. Remove the grommet from the telephone wire entrance as shown in

62 Section I: Outdoor Installation