Scope, Description, Installation Cable Distances

2.0 SCOPE

The information contained within this manual covers the installation and operation of Pelco TVJ6AC-1 and TVJ6MS-1 motorized zoom lenses.

Installation should be in accordance with all applicable local and national electric codes, utilizing approved materials only.

Please thoroughly familiarize yourself with the infor- mation in this manual prior to installation and opera- tion.

3.0 DESCRIPTION

Pelco’s TVJ6AC-1 and TVJ6MS-1 are 2/3" format motorized zoom lenses designed to provide remote control of zoom, focus and iris functions on the TVJ6MS-1 lens, and zoom and focus only on the TVJ6AC-1 lens. These lenses feature color corrected professional quality optics.

The TVJ6MS-1 is equipped with a tapered neutral den- sity spot filter as an integral part of the lens to permit light attenuation beyond the normal range of a zoom lens down to f360. The spot filter is densest toward the center and decreases toward the circumference, permit- ting operation of low-light level cameras in brightest daylight down to minimum required faceplate illumi- nation.

The TVJ6AC-1 is equipped with a tapered neutral den- sity spot filter and internal automatic iris electronics for fully automatic iris operation on low-light level CCTV cameras.

Models with the letters “LPP” in the part number are equipped with potentiometers for the zoom and focus drive motors, providing a means for preset positioning commands from a microprocessor based control unit to automatically drive zoom and focus functions.

4.0INSTALLATION

4.1CABLE DISTANCES

The following distances are for reference only and are the approximate maximum recommended under the fol- lowing conditions:

—30mA maximum at 12 VDC

—Single lens function activation

—Single common conductor in lens cable

—10% loss in voltage

22 Awg to 1,236 feet (377 m)

20 Awg to 1,968 feet (600 m)

18 Awg to 3,133 feet (955 m)

16 Awg to 4,974 feet (1,516 m)

NOTE: Video limited to 500 feet on RG-59 coax cable without equalization amplifier.

4.2 WIRING

4.2.1 TVJ6AC-1 Motorized Zoom Lens

This lens features a spot filter and internal auto-iris circuitry for use with low-light level CCTV cameras.

The auto-iris circuitry must sample either composite or non-composite video from the camera and be supplied with 9 to 18 VDC. Functions are on a separate cable.

4.2.1.1 Wiring Pinouts

Wiring is as follows:

				Connector
Function	Color			Pin Number

Zoom	Green			2
Focus	White			3
Common	Black & Red			4


Small
4-Conductor Cable*			Auto Iris Cable

Red wire		VCC (+9 to +18 VDC)
Black wire		Ground
White wire		Video Signal
Green wire		VCC (+9 to +18 VDC)

*Plug for this cable is provided with the camera.

2	Pelco Manual C707M-B (11/96)