Bypass
3-4
SG-9500 Hardware Guide
Figure 3-4: HD 8 Copper 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.
The HD 8 Bypass Unit includes connectors for up to 4 links on the SG-9500. In
addition, the HD 8 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).
An HD 8 Bypass Unit supports up to 8 ports (4 links).
The HD 8 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. There is no way to have a single link go
into bypass independently. When moving to Bypass mode
all
links are switched
into Bypass.
NOTE 1G Copper interfaces may only use the 8 Port Bypass Unit is available, limiting
the number of ports which may be used on the SG-9500.
HD 8 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 the Link is in Bypass mode.
HD 8 Bypass Unit Front Panel Connectors
•
Network Ports 1-4
connect to your network.
Be sure to insert the Internal
and External connectors into the correct ports on the Bypass Unit. In
addition please note that in fiber Bypasses, on each Duplex LC connector
on the Bypass unit’s front panel the Tx connector is the left LC connector
and the Rx is the right LC connector.
Mode LED
Link to SG-9500
Secondary
Primary
Link to the
Network