Bosch Appliances LTC 4600 5REPLACEMENT PARTS, 4.9LTC 4637 Series Rack-mountCard Cage, En

LTC 4600 Series Instruction Manual Replacement Parts EN 16

4.9LTC 4637 Series Rack-mount Card Cage

4.9.1Installation

1.Install the LTC 4637 Series Rack-mount into a standard EIA 19in. rack, using user-supplied rack- mounting hardware. Be careful to not damage exposed objects on the back of the card cage unit.

2.If a secondary earth ground connection is needed, a grounded wire with a ground lug can be attached to the rack using the protruding screw provided on the right side of the chassis.

3.Connect the supplied AC voltage line cord between the rear of the power supply and the appropriate AC voltage source.

4.Fiber optic plug-in modules can be installed into any of the available 14 slots of the card cage. Most modules require only a single slot width, but others, such as the LTC 4644 and LTC 4645 Series, require two slot widths.

5.If desired, LTC 4600/00 blank panels (ordered separately) may be installed to cover unused slots. A single blank panel covers a single slot opening.

6.Refer to the sections of this manual for specific installation instructions regarding the plug-in modules.

4.9.2Indicators

1.LTC 4637 Series front panel LED illuminates when AC power is applied to the unit.

2.Each fiber optic plug-in module is equipped with a POWER LED indicator that illuminates when power is applied to the rack unit.

LTC 4637/60

power supply

Power

BOSCH

Figure 11 LTC 4637 Series Typical Installation

4.9.3LTC 4637 Maintenance / Service Information

1.The power supply is fused with a 1A slow blow fuse. To replace the fuse, remove the AC power line cord from the power supply, and carefully pry out the fuse module above the AC connector.

2.The 3-pin connector on the rack supplies a 20VAC center tapped voltage, and is the only electrical connection from the back plane to a plug-in module. Each plug-in module contains its own fuse, so in the unlikely event of a module failure, the other modules in the rack remain unaffected.

3.The power supply is modular in construction, and can be replaced in the event of damage or failure. To remove the power supply from the rack:

a)Disconnect the AC line cord and power supply cable from the circuit board back plane, located on the rear of the card cage.

b)Loosen the four (4) screws located at the front of the power supply using a small flat blade screwdriver. Slide the power supply out of

the card cage.

c)Reverse the above procedure to install the power supply into the card cage.

5REPLACEMENT PARTS

UPA-1509-60 Power Supply for 120VAC Stand- alone Modules

UPA-1509-50 Power Supply for 230VAC Stand- alone Modules

Bosch Security Systems July 08, 2008