5
FIBER PORTS 1-4
There are four ST connectors which are single-mode, bi-directional gigabit ethernet
fiber ports. These panel-mounted ST connectors are connected internally to
industry-standard SFP modules.
Since the ports are bi-directional, a fiber link requires only a single strand of fiber.
IMPORTANT NOTE
Since the SFP modules are bi-directional they transmit on one wavelength and
receive on a different wavelength. This means that the modules on the two ends of
a fiber link must be complementary; transmit on one end must match receive on the
other end and vice versa.
By industry convention, there are two types of SFP modules:
TYPE A (BLUE plastic handle) TX on 1310 nm, RX on 1550 nm.
TYPE B (YELLOW plastic handle) TX on 1550 nm, RX on 1310 nm.
The modules may be changed by removing the top cover if a different configuration
is required.
The 'FIBER' status leds will light green if a good link is established, and will flash
when there is network traffic.
If the received optical power level is low (-17dBm or lower) the led color will change
to yellow, indicating a dirty fiber or lossy fiber path.
Most ADX-8000s are shipped with TYPE B (Yellow) modules in ports 1 and 2,
and TYPE A (Blue) modules in ports 3 and 4. Some units have different
configurations to match certain customer's existing standards or for special
requests. Please see the labels below the ST connectors for the configuration
of your unit.
Summary of Contents for ADX-8000
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