Magnum 220RM Features
• Connecons:
The on/o switch is located in the le side of the top panel. On the rear panel, there are six pairs of
outputs. The track outputs (boom set) connect to each track using one of the banana plugs included.
The jacks and plugs are color coded black (- negave) and red (+ posive) voltage. One of the features of
Bridgewerks controllers is the ability to piggyback the jacks when you have very long track and want to
have addional wire connected at several points on your layout. This gives you maximum evenly distrib-
uted power on your track. There are also two 24-30 volt DC outputs at the top of the rear panel to use
for accessories. The middle set of yellow jacks is the used for the RC-100 remote (not included).
• Speed Governor:
Bridgewerks’ exclusive “speed-stop” can be used as a safety device to limit the maximum speed of your
trains. The speed stop consists of a metal plate which is held in place with a thumb screw. To adjust the
speed stop, loosen the thumb screw, adjust the throle slide control so that the train is going as fast as
you want to allow, and then slide the speed stop down to limit the maximum speed. Tighten the thumb
screw. Now you can move the throle control from 0 up to the maximum selected speed.
• Momentum:
The 220RM features an adjustable momentum control for each track that will limit the acceleraon and
deceleraon of the trains. When momentum is at maximum and you move the throle from the mini-
mum to the maximum, the train will slowly accelerate from a stop to the maximum speed. Similarly if the
throle is moved quickly from maximum to 0, the train will slowly decelerate to a stop. Momentum
adds another dimension of realism to your model railroad. In addion, the combinaon of speed gover-
nor and momentum makes it easier to limit derailments when younger engineers are at the controls.
• Direcon Control:
The 220RM has a direcon control switch which will change the direcon of the locomove. If the loco-
move runs backwards when the switch is in the forward posion, reverse the connecons going to the
track.
• Overload Protecon:
In the event of an overload, the 220RM has two dierent ways of protecng itself and your train from
damage. A manual circuit breaker is on the le side of the rear panel. The buon will pop out and the
power to the track will be cut o. If this happens, correct whatever caused the overload, wait 2 or 3
minutes and then push the switch to reset it.
In addion, there is an automac thermal cuto inside the controller which will be acvated in the event
of an overload. This will reset itself automacally in 2-3 minutes aer the cause of the overload is re-
moved.
• Oponal Remote Throle Capability (RC-100):
On the back of the 220RM there is a pair of yellow terminals for the remote control. Plug the receiver
into these two yellow terminals (it will automacally also plug into the accessory power pins) and pro-
vide you with wireless remote control over the throle
• Wire:
Use heavy gauge wire to connect your power controller to the track. For distances of up to 15 feet,
you should use 12 gauge wire. For distances over 15 , you use 10 gauge wire. Although the track
itself is similar to a very heavy gauge wire, in larger layouts, signicant loss can occur from the
connecons between secons of track. To improve this, run mulple power connecons to the
track from the controller and/or use track clamps rather than slider type couplers. In outdoor
layouts which are exposed to extreme temperatures, the track will expand and contract as the
temperature changes, and slider type couplers may have to be used.
• Outdoor operaon
Garden railways are oen installed outdoors and Bridgewerks controllers are built to be used with
outdoor railroad layouts. However, they are not waterproof, and as with any electronic equipment,
they should not be le outdoors when not in use. To make this easy, the connecons are all made so
that they can simply be unplugged and the controller can be carried indoors.
• Accessory Power
On the back of the 220RM in addion to the pair of yellow remote terminals and the terminals that
provide power to the track, there are two pairs of terminals for accessory power. The pair on the top
provide an unregulated DC power source that will be from 24 to 32V depending on how much power
you are drawing from the connecon.