ADEMCO Vista-128B PLUS Especificaciones descargar pdf (Pagina 27)

Section 3 - Installing the Control

3-9

Installing RPM Devices

The polling loop provides both power and data to the

RPM devices, and is constantly monitoring the status of

all zones enabled on the loop. The maximum current

draw of all devices on the polling loop cannot total more

than 128mA (unless the system uses a 4297 Polling

Loop Extender Module).

Devices that can be programmed via either DIP

switches or the built-in unique serial number

must

be set for the serial number mode

operation.

All devices on the polling loop must be wired in parallel

to the [+] and [-] polling loop terminals of the control

panel (24 and 25). You can wire from device to device,

or have multiple branches connected directly to the

control panel in a star configuration.

Do not run polling loop wires within 6” of AC

power, telephone, or intercom wiring. The

polling loop is carrying data between the control

panel and the devices, interference on this loop

can cause an interruption of this communication.

The polling loop can also cause outgoing

interference on the intercom or phone lines. If

this spacing cannot be achieved, shielded wire

must be used. (Note that the maximum total

wire length supported is cut in half when

shielded wire is used.)

Compatible Polling Loop Devices

Model Number Type

4208 8-Zone Expander

4190WH 2-Zone Expander

4278 Quad PIR

4275 Dual PIR

4194 Surface-Mount Reed Contact (Wide Gap)

4297 Extender Module

4192SD Photoelectric Smoke Detector Devices

4192SDT Photoelectric Smoke Detector w/Heat

Detector

4192CP Ionization Smoke Detector

4101SN Serial Number Single-Output Relay Module

4208U Universal 8-Zone Expander

4939SN-BR

4939SN-GY

Serial Number Surface-Mount Reed

Contacts

4191SN-WH Serial Number Recessed Reed Contact

4959SN Aluminum Overhead Door Contact

7500 Single Technology Glassbreak Detector

9500 Dual Technology Glassbreak Detector

4209U Universal Group Zoning Module

4193SN Serialized 2-Zone Expander

4293SN Serialized 1-Zone Expander

4190SN Serialized 2-Zone Expander

998MX Serialized PIR

•

The 4208 must be mounted either inside the

control panel’s cabinet or in a separate

enclosure that has a tamper-supervised cover.

•

The 4190WH right loop must not be used, and

the left loop must be EOLR-supervised.

•

The 4278 right loop cannot be used.

•

The 4194 is not UL Listed.

•

The 4297 must be powered from the control

panel’s Auxiliary Power Output or from a UL

Listed supplementary power supply.

•

The 7500 and 9500 detectors are not UL Listed.

•

Twisted-pair is recommended for all wire runs.

•

No more than 64mA may be drawn on any

individual wire run.

•

When a star configuration is used, the total

length of all wire runs combined cannot exceed

4000 ft (2000 ft. if you are using unshielded

wire in conduit or shielded wire).

To install polling loop devices, perform the following steps:

Step Action

1 Select devices from the list of compatible

devices shown previously.

2 Set the DIP switches in the device (if

required). Refer to the device’s instructions

for the DIP Switch Tables.

3 Mount each device in the desired location.

Refer to the device’s instructions.

Run wires from the control panel to each

device on the polling loop (see

Figure 3-16

No individual wire run may exceed the

lengths shown in the following table.

Maximum Polling Loop Wire Runs

Wire Gauge Max. Length

#22 gauge 650 feet

#20 gauge 950 feet

#18 gauge 1500 feet

#16 gauge 2400 feet

5 Wire each device to the polling loop, making

sure of the correct polarity (refer to the

device’s instructions).

NOTE:

If you are using serial number

devices, and intend to enroll each device

through the keypad 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.

If you intend to

manually enter the serial

numbers

through the keypad or through

Compass downloading software, all the

devices may be connected before powering

up to program.

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 127 128

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ADEMCO Vista-128B PLUS Especificaciones Pagina 27

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