DSC MAXSYS PC4020 Manuel d'installation télécharger pdf (Page 10)

2.7 Programmable Output Wiring

The PGM output is a programmable terminal and will

connect to +12V when activated. The terminal can sink a

maximum current of 50mA. If the desired current is

higher than 50mA, a relay will be required. To connect

the relay, refer to the diagram below:

Each output can be programmed as one of numerous

available output options. See Section 11.4 “Programma-

ble Output Options” for a complete list of PGM output

options.

2.8 AML Device Wiring

Addressable Multiplex Loop (AML) devices use a 2-wire

connection for power and to communicate to and from

the control panel. All detectors are designed for low

power consumption to make for an efficient system.

The system can accommodate up to 112 addressable

devices. Connect the addressable loop to PGM1 and/or

PGM2, when programmed for AML operation. If only

one loop is used, then all 112 devices can be on one loop.

If both PGM1 and PGM2 are used, the 112 devices can be

divided between the two in any ratio that suits the appli-

cation.

For instructions on configuring PGM1/PGM2 for AML

operation, and for AML device enrollment, see Section

4.4 “Enrolling AML Devices.”

Addressable Devices

The following addressable devices are available:

• AMS-220/220T Smoke Detector with optional temper-

ature sensor

• AMB-300 PIR Detector

• AMB-500 Ceiling Mount PIR

• AMB-600 Dual PIR Detector

• AMA-100 Glass Break Detector

• AMP-700 Magnetic Door/Window Contact

• AMP-701 Contact Input Module

Addressable Loop Response Time

The overall system response time for devices on the

AML loop depends on two criteria: how many loops are

used and how many devices are on each loop.

The response times below include three factors:

• input debounce time

• addressable reporting and confirmation time

• processing time required by the panel to activate the

output

These response times are worst case and typical response

will be faster.

One loop used:

1 to 32 devices on the loop ................................up to 2.5s

33 to 112 devices on the loop.............................up to 5.4s

Two loops used:

1 to 32 devices on both loops ............................ up to 3.2s

Over 32 devices on both loops.......................... up to 7.5s

Addressable Loop Current Calculation

Each addressable multiplex loop can draw a maximum

of 170mA of current from the main panel. In order to

determine the amount of current required for the AML

loop, complete the following chart:

When more AML

devices are added

to a single loop, the

current draw

increases. The loop

wire length must

be limited to the

following dis-

tances depending

on the total loop

current:

Addressable Loop Wiring

AML devices can be home-run, connected in a daisy

chain, or T-tapped. Wire the AML loop according to the

following diagram:

Addressable Loop Current Calculation Chart

Item Current (mA) x Quantity Total (mA)

AMS-220/T 0.8 x

AMB-300 2.5 x

AMB-500 2.5 x

AMB-600 3.5 x

AMA-100 3.5 x

AMP-700 0.8 x

AMP-701 0.8 x

Total Current =

LOOP CURRENT vs. WIRING DISTANCE

Total loop

current (mA)

22 AWG

distance (ft/m)

18 AWG

distance (ft/m)

10 2880/878 5143/1568

20 1620/494 3645/1111

30 1010/308 2520/768

40 771/235 1736/529

50 600/183 1250/381

60 500/152 980/298

70 400/122 800/244

80 321/98 720/220

90 250/76 500/152

100 200/61 310/95

110 165/50 220/67

120 135/41 155/47

130 115/35 130/39

140 106/32 126/38

150 100/30 124/37

160 98/29 122/36

170 96/28 120/35

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 51 52

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DSC MAXSYS PC4020 Manuel d'installation Page 10

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