American Dynamics RJ1SNUD-1 Guide d'installation télécharger pdf (Page 6)

SENSORNET SINGLE-POSITION JUNCTION BOX (J-BOX) 8000-2573-21, REV. F

INSTALLATION GUIDE 6 of 10

6. Run conduit and ac cable to box and clamp

conduit in place (Figure 7).

7. Reattach chassis.

Figure 7. Conduit attachment

8. Wire ac line to TB1 and jumper primary taps of

transformer according to ac source (refer back

to Figure 6).

120Vac: Place a jumper across taps 1 and 3,

and another jumper across taps 2 and 4.

240Vac: Place a jumper across taps 2 and 3

only.

9. Reattach PC board assembly.

Changing the Fuse

To reduce the risk of fire, replace fuses with the

same type and rating (3:15A type IEC127, sheet III).

The part number for the fuse is 5111-0017-21. Two

spare fuses are provided inside the cover.

To access fuse, use a small slotted screwdriver to

unscrew the cap of the fuse holder (Figure 7) and

lift out the fuse.

Connecting Power and

Data Cables

Note: Incoming and outgoing video cables are

connected together within the box. No termination

exists for video cables within the J-Box.

Power Cable Requirements

The low-voltage power cable runs between the

J-Box and the camera dome. The length of this

cable depends on the ac line voltage. See Table 1

for cable lengths based on worst case low line

voltages for Japan (100Vac), North America

(120vac), and Europe (240vac).

Table 1. Cable length vs. line voltage

Worst

Case Line

Voltages 18AWG 16AWG 14AWG

90 Vac

(Japan)

30m

(100ft)

50m

(160ft)

80m

(260ft)

102 Vac

(N. Amer.)

60m

(200ft)

100m

(320ft)

160m

(520ft)

180 Vac

(Europe)

30m

(100ft)

50m

(160ft)

80m

(260ft)

204 Vac

(Europe)

60m

(200ft)

100m

(320ft)

160m

(520ft)

Data Cable Requirements

The data cable contains one non-polarized 22AWG,

unshielded, twisted pair. Up to 1km (3000ft) of data

cable can be run from the Host to the J-Box, or from

J-Box to J-Box (see CAUTION below). For more

information about the SensorNet communication

protocol and possible cable network configurations,

see Communication Protocols and Cable Networks,

8000-2573-19.

CAUTION: The data cable from the J-Box to the

dome is limited by the length of the power cable.

See Table 1 above.

Note: Power, data, and video cables can be ordered

separately or within a composite cable ordered in

various lengths. Plenum-rated cables must be used

in indoor ceilings used for environmental air return

(called “other air space” in the National Electrical

Code). Order parts through your distribution

network. If you order cable from an outside source,

wire colors may be different.

Conduit

Fuse holders

1 2 3 4 5 6 7 8 9 10

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American Dynamics RJ1SNUD-1 Guide d'installation Page 6

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