Switch Owner's Manual

Using the Passport 8100 Modules
C-2 204515-C
450 Series MDAs
Four versions of gigabit Ethernet MDAs are available:
• Two shortwave gigabit MDAs (Figure C-1
):
— The 450-1SR MDA is a single-MAC MDA with a separate redundant Phy
(backup Phy port).
— The 450-1SX MDA is a single-Phy MDA.
These MDAs use shortwave 850 nm fiber optic connectors to connect devices
over multimode (550 meter) fiber optic cable.
• Two longwave gigabit MDAs (Figure C-2
):
— The 450-1LR MDA is a single-MAC MDA with a separate redundant Phy
(backup Phy port).
— The 450-1LX MDA is a single-Phy MDA.
These MDAs use longwave 1300 nm fiber optic connectors to connect
devices over single-mode (3 kilometer) or multimode (550 meters) fiber optic
cable.
Figure C-1. 1000BASE-SX (Shortwave Gigabit) MDA Front Panels
1000BASE-SX
TX RX
Phy
Link
Activity
450-1SX MDA
TXRX
1000BASE-SX
RX
1000BASE-SX
TX
Activity
Link
Phy Select
450-1SR MDA
9217EA
2
2
450-1SR MDA
(1-port redundant)
450-1SX MDA
(single port)
1
1
1 = LEDs
2 = 1000BASE-FX SC Port Connectors