Sharp YO-370 Instrukcja Obsługi Pobierz pdf (Strona 29)

FTS 370d/w/r Revision 10 – 1/09/2015 17

6. Tighten the cable strain relief on the

bottom of the SC 370 enclosure

securely.

GPS Antenna

The GPS antenna, shown in Figure 2-1, is

required with the GPS enabled PCB3 Smart

Board shown in Figure 1-5. Follow the

method below to install the GPS antenna.

Important! The GPS antenna must be

mounted outdoors with an unobstructed

view of the sky.

1. Disconnect AC power to the SC 370 and

wait 5 minutes for voltage to bleed off.

2. Open the enclosure door and install the

cable strain relief and locknut into an

available 1/2” hole in the enclosure

bottom.

3. Route the antenna cable’s small

connector through the cable strain relief

(from the enclosure outside) to the GPS

antenna connection located on PCB 3

(see Figure 1-5). Route the cable along

the right side of the enclosure. Plug the

cable connector into the GPS antenna

connection on PCB 3.

4. Attach the antenna cable to the side of

the enclosure using the two pre-installed

ribbon cable clamps.

5. For best reception and synchronization,

choose a location for mounting the GPS

antenna with an unobstructed view of the

sky. The included mounting bracket can

simultaneously accommodate a

Vanguard Photodiode, Cellular Antenna,

and GPS Antenna (see Figure 2-1).

Note: See “Photodiode Mounting” and

“Cellular Antenna” for additional

considerations when selecting a mounting

location for the Antenna Mounting

Bracket.

6. Mount the Antenna Mounting Bracket

using one of the following methods:

 Wall Mount: Use screws (not

included) to mount to the outside

wall of a shelter.

 Horizontal Unistrut Mount: Use

spring-nuts (not included) to mount

to unistrut.

 Vertical Pole or H-frame post

Mount: Use 3” U-bolt (included) to

mount to pole or H-frame post. The

bracket permits use of larger U-bolts,

up to 5”.

Important! Regardless of the mounting

method selected, the antenna bracket

must be grounded with a minimum AWG

14 Ground wire connected to the site

Grounding System. Observe proper

Grounding procedures.

7. Mount the GPS antenna onto the

mounting bracket using its large

mounting nut.

8. Connect the antenna cable connector to

the GPS antenna.

9. Secure the antenna cable to the mounting

structure using cable ties.

10. Coil up any unused antenna cable inside

the SC 370 enclosure. The diameter of

the coil should be as large as possible.

11. Tighten the cable strain relief on the

bottom the of SC 370 enclosure

securely.

12. Verify that neither LED: Ant. Open or

Ant. Short, shown in Figure 1-5, are lit

once system power is restored. See

Section 1 GPS Sync. Kit for additional

information regarding the Ant. Open and

Ant. Short LEDs.

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