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WR44 Series Installation Guide
8
ANT. WLAN
(Aux.)
This male SMA connector is used to fit the wireless LAN diversity
antenna for improved receiver sensitivity.
(Models with WLAN option fitted only)
LAN 0, 1, 2, 3
The socket labelled LAN is used to connect the unit to a
10/100Base-T LAN using the 2-metre STP (Shielded Twisted
Pair) cable supplied or a suitable alternative. This port is auto-
sensing for speed and wiring (straight-through or cross-over). To
comply with EMC requirements it should not be used with non-
STP cable.
Reset button
This is located on the underside of the unit near the front (just behind the DTE LED), and
can be accessed through a 2.5mm hole using pencil tip or similar implement. Holding the
reset button down gently for 5 seconds when the unit is powered up and operational (i.e.
has finished booting), will cause the factory settings to be loaded into flash before and
then re-boot. During this time you will see a pattern of alternating LEDs flashing followed
by the normal boot sequence. Do not remove power from the unit during this operation, as
corruption of the flash memory may occur.
1.3 Optional features.
WR44 series routers are available with a variety of hardware options. At present these
are:
1 x ASY
Provides an additional asynchronous serial port using a 25-way D
connector
3 x ASY
Provides three additional asynchronous serial ports using RJ45
connectors.
1 x SYN
Provides an X.21/RS422/RS232 synchronous serial port using a
25-way D connector.
1 x GPS
Provides GPS geo-location capability.
1 x ISDN BRI
Provides an ISDN Basic Rate Interface (BRI) via an RJ45 socket.
This can be configured either as a TE (terminal endpoint) or as
NT-1 (network termination). The option also includes an additional
asynchronous serial port via a second RJ45 socket.
Telemetry 1
Card
General Digital I/O Card.
WR44 Series Installation Guide
9
Only one of the above options can be fitted and will occupy the area of the rear panel
normally covered with the blanking plate. For example, if the GPS option is fitted, the rear
panel will appear as shown below: