Allied Telesis AT-8126XL - Manual (Page 19)

AT-8118, AT-8124XL, and AT-8126XL Installation Guide
1-9
The Media Dependent Adapters (MDAs)
Allied Telesyn offers optional MDAs, shown in Figure 1-6. You may
install any combination of uplink options in Port A or Port B on the
AT-8118 or AT-8126XL. Table 1-2 describes the MDAs.
Figure 1-6 Media Dependent Adapter Faceplates
AT-A11
100BASE-FX/SC
RX TX
AT-A10
100BASE-TX
X
AT-A21
100BASE-FX/VF
AT-A20
100BASE-FX/MT
X X
AT-A10 (TX) AT-A11 (FX/SC)
AT-A20 (MT-RJ) AT-A21 (VF-45)