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Table 25. Maximum communication link wiring length
Max. Wire Length
1,000 ft
2,000 ft
3,000 ft
4,000 ft
5,000 ft
Note: pf/ft = picofarads/foot
Ambient Temperature and Humidity
Limits
Ambient operating conditions:
•
Temperature: 32 to 120°F
•
Relative humidity: 10 to 90%, non-condensing
Ambient Storage Conditions
•
Temperatures: -50 to 200°F
•
Relative humidity: 5 to 95%, non-condensing
Table 26. Wiring recommendations for the remote HI
panel
Distance to Remote HI
0-460 feet
461-732 feet
733-1000 feet
Mounting the Remote Human
Interface (RHI) Panel
The installer must provide all mounting hardware such as;
hand tools, electrical boxes, conduit, screws, etc. Refer to
Figure 28, p. 46
for the mounting hole and knockout
locations.
Procedure
Refer to
Figure 28, p. 46
and follow the procedure below
for mounting the remote HI panel on a 4" x 4" electrical
junction box. Place the microprocessor in a clean dry
location during the enclosure mounting procedures to
prevent damage.
1. Mount an electrical junction box in the wall so that the
front edge of the box will be flush with the finished wall
surface.
2. Prior to mounting the panel, the microprocessor module
must be carefully removed from the enclosure. To
remove the module:
a. Lay the remote panel face up on a flat surface and
remove the locking screw from the right hand
SCXF-SVX01T-EN
Max. Capacitance Between
Conductors
up to 60 pf/ft
up to 50 pf/ft
up to 40 pf/ft
up to 30 pf/ft
up to 25 pf/ft
Recommended Wire Size
18 gauge
16 gauge
14 gauge
bottom end of the panel.
b. Remove the recessed hinge screw from the left
hand bottom end of the panel.
c. Unlatch the door of the enclosure as if to open it,
and slide the left hand side of the door upward
away from the hinge. Lay it aside.
d. With the key pad visible, remove the two screws
located on the right hand side of the key pad.
e. Carefully slide the key pad plate upward from the
bottom, releasing the extruded hinge pin from its
socket at the top.
f.
Set the microprocessor aside until mounting is
complete.
3. Remove the junction box knockout in the back of the
enclosure.
Note: The top of the enclosure is marked "TOP."
4. With the enclosure in the correct position; align the
mounting holes around the knockout in the enclosure
with the screw holes in the electrical handy box and
secure with the appropriate screws.
5. Replace the microprocessor within the enclosure as
follows:
a. Verify that the terminal block jumpers are
connected properly.
b. Slide the extruded hinge pin at the top left of the
key pad plate into the hole located at the top left
hand side of the enclosure.
c. Slide the bottom of the plate into place, aligning the
two clearance holes with the screw holes on the
right. Install the screws but do not tighten.
Note: If the two screws are not installed as called
out in the previous step, hold against the key
pad plate while installing the door in the next
step, to prevent it from falling out.
d. Slide the extruded hinge pin at the top left of the
door into the hole located under the bottom left side
of the display.
e. Install and tighten the hinge screw located at the
bottom left side of the enclosure.
Wall Mounting the RHI Panel
1. Prior to mounting the panel, the microprocessor module
must be removed from the enclosure. Complete Step 2
in the previous section before proceeding.
2. With the microprocessor removed, refer to
p. 46
for the location of the mounting holes to be used
for wall mounting.
3. Place the enclosure against the mounting surface and
mark the mounting holes.
Note: Note: The top of the enclosure is marked with
"TOP."
4. With the enclosure in the correct position, remove the
enclosure and drill the necessary holes in the surface
Installation - Electrical
Figure 28,
45
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