ADEMCO VISTA-128B Průvodce nastavením stáhnout pdf (Strana 49)

Section 7 - 2-Wire Polling Loop Expansion

7-3

2. Wire each device to the polling loop, making sure to use correct polarity when making

connections (refer to the device's instructions). If you are using serial number

devices, and intend to have the control enroll each serial number

automatically, wire no more than 25 of these devices to the control at a time.

Then power up and program them before connecting the next 25. Leave previously

enrolled devices connected.

3. If you intend to manually enter the serial numbers through the keypad or through V-

LINK or Compass downloading software, all the devices may be connected before

powering up to program.

4. Note the polling loop devices that have DIP switches on them. Set each device's DIP

switches for the zone number you are assigning it. Refer to the device's instructions or

the DIP Switch Tables at the end of this manual when setting addresses.

Certain polling loop devices have a DIP switch which can be used either to select the device's

zone number or to select the enrolling of a unique, embedded serial number by the control panel.

When used with VISTA-128B, these devices

must

be set for the serial number mode of operation.

The 4297 Polling Loop Extender may be used to provide additional polling loop current, to

extend the polling loop wire run length, and/or to provide individual electrically isolated

polling loops. Refer to Figures 7-2 and 7-3, to follow.

DO NOT

use the 4197 Polling Loop Extender module with the VISTA-128B

Be sure to include the total current drawn on the polling loop when figuring the total auxiliary load

on the panel's power supply (use the AUXILIARY CURRENT DRAW WORKSHEET in the

Final

Power Up Procedure

section.

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ADEMCO VISTA-128B Průvodce nastavením Strana 49