Allied Telesis AT-8126XL - Manual (Page 29)

AT-8118, AT-8124XL, and AT-8126XL Installation Guide
2-7
Installing the Media Dependent Adapters (MDAs)
If you have the AT-8118 or AT-8126XL switch, you may order and
install one of the following MDAs in any combination:
" The AT-A10 with the 100Base-TX port
" The AT-A11 with the 100Base-FX port (SC)
" The AT-A20 wih the 100Base-FX port (MT-RJ)
" The AT-A21 with the 100Base-FX port (VF-45)
These MDAs are installed in either the Port A or Port B slot on the
switch. Contact your Allied Telesyn representative for ordering
information.
MDA Package
Contents
Check your MDA package for the following items:
" One MDA, either the AT-A10, AT-A11, AT-A20 or the AT-A21
" Three Phillips flathead screws
" One AT-A10, AT-A11, AT-A20, and AT-A21 Quick Install Guide
" Warranty card
MDA Installation
You may install the MDAs in any slot position, Port A or Port B.
Caution
Lightning Danger
DO NOT WORK on equipment or CABLES during periods of
LIGHTNING ACTIVITY.
! 9
1. Disconnect the switch’s power cord, if attached.
2. Unscrew the three Phillips flathead screws on the switch’s blank
faceplate and save for future use. Keep the blank panel attached if
the MDA slot is empty.
Caution
Do not remove the MDA blank faceplates if you are not installing
MDAs.
3. Unpack the MDA making sure to observe ESD precautions.
The standoff on the MDA guides it correctly into position so
that the MDA’s 50-pin plug aligns with the 50-pin receptacle
on the main board. Refer to Figure 2-3 for the location of the
standoff and the 50-pin connector.