INSTALLATION PROCEDURES

TO 31R2-2GRC171-2

TM 11-5820-815-14

NAVELEX 0967-LP-544-5010

SECTION III

INSTALLATION PROCEDURES

2-19. MOUNTING.

NOTE

2-20.

RADIO RECEIVER-TRANSMITTER

Do not secure unit until after initial setup has

RT-980/GRC-171.

been performed.

2-21. The RT-980/GRC-171 mounts in a standard

f. Slide unit into rack and secure with four screws

482.6-mm (19-in) rack cabinet. The unit requires 222.3

and flat washers provided by the user.

mm (8.75 in) of vertical clearance and 546.1 mm (21.50

in) of front-to-rear clearance as shown in figure FO-1.

2-22.

RADIO SET CONTROL C-7999/GRC-171.

To mount the unit, proceed as follows:

2-23. The

C-7999/GRC-171

maybe

mounted

anywhere within 305 m (1000 ft) of the RT-980/GRC-

NOTE

171. Refer to paragraph 2-14 for cable requirements.

The mounting space required by the front panel is 82.6

Slide rails are attached to the RT-980/ GRC 171

mm (3.25 in) wide by 66.7 mm (2.62 in) high as shown in

at the factory. The cabinet mounted slides are

figure 2-1. Front-to-rear clearance required allowing for

contained in slide mounting hardware kit, Collins

the mating connector is at least 152.4 mm (6.00 in). To

part number 623-5818-001. Inventory the slide

mount the C-7999/ GRC-171, proceed as follows:

mounting hardware kit using figure FO-1 prior to

installing the kit. The kit contains four slide

brackets designated as front left, front right, rear

NOTE

left, and rear right. The brackets are easily

identified by comparing the part number

stamped on each bracket with figure FO-1.

The C-7999/GRC-171 is designed to mount in an

existing user-supplied panel.

If it should be

a. Mount slides in cabinet using hardware provided.

necessary to cut a mounting hole, refer to panel

Refer to figure FO-1.

mounting detail of figure 2-1 for dimensions. Drill

screw holes for 4-40 tap or use #27 clearance drill.

b. Install RT-980/GRC-171 on slides in cabinet.

a. Connect mating connector to J1 at rear of unit.

c. Install ground wire on lug provided at rear of unit.

b. Fasten unit in place with four 4-40 roundheaded

screws and lockwashers.

CAUTION

2-24.

INITIAL SETUP PROCEDURE.

Do not apply primary power to unit until after

2-25. The initial setup procedures ensure that the RT-

checking primary power strapping. Refer to

980/GRC-171 matches the operational requirements of

primary power strapping, para- graph 2-26 and

the user station. There are no initial setup procedures

figure 2-2.

for the C-7999/GRC-171.

d. Connect cables to A100A2J6, A100J7, A100A2J8

CAUTION

(if used), A10A2J9, and A10A2J22 at rear of unit.

Do not apply primary power to the RT-980/ GRC-

e. At front panel, verify that the coaxial jumper is

171 until primary power strapping has been

connected between ANT and XCVR jacks.

checked. Refer to paragraph 2-26 and figure 2-2.

2-5