Description
Description
The OM1004 Ethernet switch has three 1000BASE-X optical ports and one 10/100/1000BASE-T
electrical port. Rapid Spanning Tree (RSTP) allows redundant connections between nodes. A
dip switch allows plug and play RSTP, while the serial console port allows for an RSTP
configuration tailored to specific needs. Optics for multimode, singlemode, and single fiber
applications are available. A universal AC power supply is built in, while an auxiliary 5V DC input
from an external power cube (not supplied) allows for power source redundancy. The OM1004
is enclosed in a rugged metal case for low radiated and conducted emissions. It does not
support jumbo packets.
Features
RSTP algorithm allows redundant links
One 10/100/1000BASE-T electrical port
Three 1000BASE-X optical ports
Plug and play operation
Redundant power supply inputs
Single or multimode fiber option
Single bidirectional fiber option
SC or ST optical connectors
Temperature range -10°C to 70°C
Distances up to 100 km
5 Year warranty
Indicators
LNK
Link
On
when a bidirectional optical or electrical LINK has been
established with a remote Ethernet port.
Flashing
when data is being transmitted or received.
STP
Spanning Tree
Green
when the port is forwarding packets in RSTP mode.
Yellow
when the port is blocking packets (is a standby link).
Note that only one end of a blocked link shows the blocking state;
however the remote link indicator will not flash which indicates it is
not passing data, and is therefore a backup link.
Green/Yellow
when the port is in the transitory learning state.
Off
when the port is not in RSTP mode.
SPD
Speed
Green
when electrical port is 1000BASE-T.
ALARM
The switches on the back of the OM1004 control this indicator. It is
on
when the link for a
required
port is off, or no link is present on
any port. When a port is
required
for proper network operation, the
corresponding switch should be up. The front panel Alarm indicator
will then come on (
red
) when a required link fails. This gives a
visual indication of link failure. This is especially important in a
redundant fiber configuration where the failure would not cause a
data transfer failure, and would hence go unnoticed. If the
electrical port is connected to a computer which is turned off at the
end of the day, switch five which controls that port should be down
(off) to avoid unnecessary alarms.
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