Pelco System 9760 manual Installing or Replacing a CM9760-DFL Downframe Looping Card

INSTALLING OR REPLACING A CM9760-DFL DOWNFRAME LOOPING CARD

The CM9760-DFL downframe looping card is used in the last bay in a downframe configuration. Note the following:

•In a CM9760-MXB(-X), the CM9760-DFL card connects to a CM9760-VCC video input card, which is installed into the front of the matrix bay. Up to 16 CM9760-DFL cards can be installed into 16 possible slot positions that are associated with the slot positions of the corresponding CM9760-VCC cards to be installed.

•In a CM9760-MXBL, up to 16 CM9760-DFL cards can be installed into slot positions that correspond to the video input slot positions in the bay above. In the CM9760-MXBL, the CM9760-DFL cards do not connect to CM9760-VCC cards.

If necessary, a CM9760-DFL card can be replaced. To install or replace a CM9760-DFL card, refer to the sections that follow.

Installing a CM9760-DFL Card

WARNINGS:

•Rear panel card installation should be performed by qualified personnel only.

•Electrostatic discharge (ESD) precautions must be observed when installing a rear panel card. Always wear a grounding strap connected to an approved grounding source when working on or near exposed electronic equipment.

NOTE: When a CM9760-DFL card is to be connected to a CM9760-VCC video input card, the CM9760-DFL card must be installed before the associated CM9760-VCC card is installed.

To install a CM9760-DFL card, do the following:

1.Set termination jumpers JP1-JP16 (refer to Figure 24) in the proper position:

•When looping to another device is required, set the jumpers in the unterminated position (jumper positions 2 and 3). Termination must occur at the final device.

•When looping is not required, set the jumpers in the terminated position (jumper positions 1 and 2).

UNTERMINATED TERMINATED

JP1-JP16

Figure 24. Termination Jumpers on CM9760-DFL Card

2.Locate the desired slot position at the rear of the bay.

3.Remove the blank cover plate by loosening the screw at the top and bottom of the plate.

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