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WM-4T1i Module Installation and User Guide 1-3
Ports and Connectors
Note: Tighten the screws before inserting additional modules. If you insert
additional modules before tightening the screws, you might unseat modules
that you have not secured.
Caution: You can only install I/O modules in the slots labeled Slot 1 through
Slot 4 on the Alpine 3804, or Slot 1 through Slot 8 on the Alpine 3808. Forceful
insertion can damage the I/O module and the connector pins on the backplane.
Ports and Connectors
The WM-4T1i module is show in Figure 1-1.
Figure 1-1: WM-4T1i Module
The WM-4T1i module has four T1 ports and two 10/100 Ethernet ports. The WM-4T1i
also has six internal loopback ports. Internal loopback ports allow you to configure
bi-directional rate-limiting without tying up any of the external ports for ingress rate
shaping. Internal loopback ports are marked with the notation “iL” when displayed on
the command line or with ExtremeWare Vista Web access.
WM-4T1i Module LEDs
The WM-4T1i module LEDs are shown in Figure 1-1.
38_WM4T1i
Module status
LEDs
T1 ports 10/100 Mbps ports