Bypass
3-6
SG-9500 Hardware Guide
HD 16 Fiber Bypass Unit
The HD 16 Fiber Bypass Unit can work in conjunction with all SG-9500
Configurations.
Figure 3-5: HD 16 Fiber Bypass Unit
NOTE Use Multi-Mode 50
μm
or Single-Mode 9
μm
fiber optic cables CROSS with LC-
LC Duplex connectors (not provided) to connect ports of the switch and the
router.
A single HD 16 Fiber Bypass unit supports up to 16 ports (8 links), for more links
additional units are required.
In addition, the HD 16 Fiber Bypass Unit includes two D-type 9-pin connectors (DB-
9) for connection to the SG-9500 via special DB-9/USB cables (available from Allot).
The HD 16 Fiber Bypass Unit is a passive optical device with no need for external
power connection. It is powered by the SG-9500 as long as it is Active. It will move
automatically to bypass mode when SG-9500 is powered off, or by being forced to
bypass mode as protective action is taken. When moving to Bypass mode
all
links
are switched into Bypass. There is no way to have a single link go into bypass
independently.
HD 16 Fiber Bypass Unit LEDs Description
The following indicators can be used to identify the operation of the blade:
•
Mode LED
is
STEADY GREEN
when the Bypass Unit is operating normally
and
OFF
when all Links are in Bypass mode.
Mode LED
Links to Network
Secondary
Primary
Links to SG-9500