Bosch LTC 1271 Series Instrukcja Instalacji Pobierz pdf (Strona 17)

C2431M-I (4/07) 17

ExSite Installation

To install the TXB-B translator board in an ExSite unit:

1. Turn off the power to the ExSite.

2. Remove the pan and tilt unit from the power module (refer to Figure 16 and Figure 17):

a. Loosen the setscrew in the locking ring with a 2 mm Allen wrench.

b. Loosen the locking ring with a spanner wrench (Pelco part #MF00-1251-121A).

c. Carefully unscrew the locking ring and remove the pan and tilt unit from the power module.

Figure 17. Removing the ExSite Pan and Tilt Unit

3. Set the J1 jumper on the TXB-B to the proper termination setting (refer to Figure 18). Note the

following:

• By default, the J1 jumper is installed in the terminated position.

• All TXB-Bs in a daisy chain, except the last unit, must be unterminated.

• The total wire distance from the Bosch (Philips, Burle) controller to the last TXB-B in a daisy

chain must be less than 4,000 ft (1,219 m).

• A maximum of 10 receivers can be installed on a single daisy chain.

• To unterminate a TXB-B, remove the J1 jumper from the TXB-B and place it over one pin for

storage.

WARNING: To reduce the risk of ignition of hazardous atmospheres, disconnect the equipment

from the supply circuit before opening.

WARNING: Total weight of the pan and tilt component is 55 lb (25 kg). Use caution when

lifting and assembling the pan and tilt component on the power module. It is recommended

that nonslip gloves be worn during installation or removal.

PAN AND

TILT UNIT

POWER

MODULE

LOCKING

RING

Figure 16. ExSite Spanner Wrench

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 47 48

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Bosch LTC 1271 Series Instrukcja Instalacji Strona 17