Pelco C491M-D dimensions Maintenance, Specifications, Mechanical, Electrical

After incorporating the enclosure into the wall structure, follow the steps below to complete the installation.

1.Remove the appropriate knock-outs and route the required cables to the enclosure.

2.You can access the inside of the enclosure from either the front or rear. Use the supplied Tampruf #10 socket (fits 1/4-inch square drive).

•The hinged front swings down after you remove the two Tampruf screws.

•The rear plate comes off after you remove the four Tampruf screws.

3.The tamper switch comes with normally open and normally closed contacts. To wire the tamper switch:

•For a normally open circuit, use the OPEN and COMMON terminals.

•For a normally closed circuit, use the CLOSED and COMMON terminals.

4.Mount the camera and lens to the tilt table.

5.Make all appropriate connections (for example, camera power, video, and lens).

6.Position the camera and tighten the 1/4-20 fasteners to secure the tilt table in the desired position.

7.Close the cover (or replace the rear plate) and check that all components clear. Secure with the 1/4-20 Tampruf screws.

MAINTENANCE

Performing maintenance at regular intervals will help prolong the equipment’s operational life and appearance. Regularly clean the Lexan® window with a mild non-abrasive detergent in water and a soft cloth to help keep the picture clear. For a very dirty window, use vinyl cleaner.

SPECIFICATIONS

MECHANICAL
Window:	1/2-inch (1.27 cm) thick impact and abrasion resistant Lexan®
Window Viewing
Area:	3.50 in. H x 4.00 in. W (8.89 x 10.16 cm)

Camera Mounting: Adjustable tilt table

Maximum
Camera/Lens
Size:	Accepts camera and lens combinations (including BNC connector) up to:
	8.0 in. L x 6.0 in. W x 6.0 in. H (20.32 x 15.24 x 15.24 cm)
Enclosure
Mounting:	Replaces half-size concrete block during wall construction
Security:	Tamper-resistant screws. N.O./N.C. switch contact on secure cover
ELECTRICAL
Cable Entry:	Two cable knock-out holes on the rear plate for 1/2-inch (1.27 cm) diam-
	eter conduit
Tamper Switch:	Plunger-type switch with “pull to cheat” feature. 1/4-inch (0.63 cm) quick
	connect. N.O./N.C. clearly marked on switch body. 10 A maximum switch-
	ing current, 125 V maximum switching voltage.