SEKURE DGP2-648 Manuel d'installation télécharger pdf (Page 11)

DIGIPLEXNE CONTROL PANEL 9

2.16 COMBUS CONNECTIONS

Modules can connect anywhere on the 4-wire combus, which can support

up to 127 modules. Connect in a star and/or daisy chain configuration as

shown in Figure 2-3 on page 5. The total distance of all runs of wire cannot

exceed 914m (3000ft). For example, if ten runs of wire measuring 305m

(1000ft) each are connected to the control panel, the total distance would

be 3048m (10,000ft), which exceeds the system’s capacity. To assign a

detection device to a zone in the control panel, see “Zone Programming” on

page 12.

Before connecting a module to the combus, remove AC and

battery power from the control panel.

2.16.1 Connecting the Combus in Noisy Environments

When installing the combus wires in proximity to high electrical

interferences such as neon lights, motors, high-voltage wiring,

transformers, or if connecting the combus across separate buildings, you

must use shielded cables. Connect the shielded cable as detailed below:

Within the Same Building: Strip the outer jacket at one end of the

shielded cable to expose the shield and connect the shield to the control

panel ground (not the dialer ground), while leaving the shield at the other

end of the cable open (floating).

Across Separate Buildings: Strip the outer jacket at one end of the

shielded cable to expose the shield. In the same building that houses the

control panel, connect the exposed shield to a cold water pipe or any other

earth ground available, while leaving the shield at the other end of the cable

open (floating). The same configuration applies for any subsequent

building.

2.17 FIRE CIRCUITS

Connect the smoke detectors using any of the following methods. Assign

the smoke detectors connected to the control panel or zone expansion

input terminals to a zone and define the zone's parameters as a Fire Zone

(see section 4 on page 12).

2.17.1 Smoke Detector Installation (2-Wire)*

PGM1 can be defined as a 2-wire

smoke detector input (see section

10.6). Connect the 2-wire smoke

detectors as shown in Figure 2-8

using a 1k

Ω EOL resistor. If a line

short occurs or the smoke detector

activates, whether the system is

armed or disarmed, the control panel

will generate an alarm. If the line is

open, the “Zone Fault” trouble

indication appears in the Trouble

Display and the report code is sent to

the Monitoring Station, if programmed.

UL Note: Not to be used with UL Listed systems.

2.17.2 ESL CleanMe

Installation

The DigiplexNE control panel supports ESL smoke detectors that have the

CleanMe

feature. Connect ESL smoke detectors like the standard smoke

detectors shown in Figure 2-8. Avoid connecting more than 20 ESL smoke

detectors. When an ESL smoke detector sends a CleanMe signal, the

control panel will generate a Zone Fault trouble and, if programmed, will

transmit the Fire Loop report code to the Monitoring Station. The trouble will

be cleared if there is no CleanMe signal for 255 seconds. If an alarm

occurs, the trouble will be cleared until it is detected again.

2.17.3 Smoke Detector Installation (4-Wire)

Recommended: System Sensor model

2112/24D smoke detectors. Connect the

4-wire smoke detectors and a relay as

shown in Figure 2-9. To comply with

UL955, install the 4-wire smoke detectors

with 18 gauge wire. If power is

interrupted, the relay causes the control

panel to transmit the Fire Loop Trouble

report programmed in section [2906].

To reset (unlatch), connect the smoke

detector’s negative (-) to a PGM. Then

program the PGM with the “Smoke

Detector Power Reset” activation event

(see section 10.1 on page 31; Event

Group #067, start # 004, end # 004) to

interrupt power to the smoke detector for

four seconds when the [

CLEAR] and

[

ENTER] keys are pressed and held for two

seconds.

If ATZ is enabled (see see section 4.2 on page 13), do not use

the extra input (doubled zone). For example, in this example

input 13 cannot be used.

2.18 TELEPHONE LINE CONNECTIONS

Depending on the installation, the telephone lines can be connected directly

to the control panel or through a CA38A or RJ31 as shown in Figure 2-10.

The secondary telephone line terminals (optional) can be used as a backup

telephone line. If the Event Call Direction process fails and the control panel

is unable to communicate with the Monitoring Station through the main line,

the control panel will switch to the second line and repeat the Event Call

Direction process (see section 8.8 on page 27).

UL Note: Installer must verify line seizure after every installation

Figure 2-10: Telephone Line Connection Examples

Figure 2-8:

2-Wire Detectors

Note: It is recommended that the smoke

detectors be connected in a daisy chain

configuration.

PGM1 becomes

input# 255

Smoke detectors

1K9

EOL

N.O. contacts

Figure 2-9: 4-Wire Detectors

Note: It is recommended that the

smoke detectors be connected in a

daisy chain configuration.

DigiplexNE

Dialer

2nd line

Main line

Ground

clamp

Example 2:

Example 1:

DigiplexNE

Dialer

Ground

clamp

2nd line

Main line

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 63 64

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SEKURE DGP2-648 Manuel d'installation Page 11

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