S e c t i o n 2 : I n s t a l l a t i o n
5
Line Loss
Voltage loss through wire resistance must be considered for all instal-
lations. To ensure proper operation, at least 12.5V
DC
must be applied
to all modules on the system (when AC is connected and the battery
is fully charged). If less than 12.5V
DC
is applied, system operation is
adversely affected.
To correct the problem, try any or all of the following:
1.
Connect an HSM2300/2204 power supply between the alarm
controller and the module to provide power to the Corbus.
2.
Reduce the length of the Corbus run to the module.
3.
Increase the gauge of wire.
Capacitance Limits
An increase in capacitance on the Corbus affects data transmission
and causes the system to slow down. Capacitance increases for every
foot of wire added to the Corbus. The capacitance rating of the wire
used will determine the maximum length of the Corbus.
For example, 22-gauge, non-shielded, 4-conductor wire has a typical
capacitance rating of 20 picofarads per foot (which is 20nF/1000’).
For every 1000' of wire added – regardless of where it is run – the
capacitance of the Corbus increases by 20nF.
The following chart indicates the total wire distance allowed for the
capacitance rating of the wire used:
Table 2-3: Wire Capacitance
2.4 Installing Modules
Remove all power from the system while connecting modules to the
alarm controller.
2.4.1 Zone Expander
The main alarm controller has connection terminals for zones 1 to 8.
Additional HSM2108 zone expanders may be added to increase the
number of zones on the system. Each zone expander consists of one
group of 8 zones. At enrollment, the zone expander is automatically
assigned to the next available zone slot. Connect the RED, BLK,
YEL and GRN terminals to the Corbus terminals on the alarm panel.
Board current draw: 30mA.
Diagram 2-3: HSM2108 Zone Expander
Refer to the HSM2108 installation sheet for more information.
2.4.2 Output Expander
The HSM2208 module is used to add up to 8 low-current programmable
outputs to the alarm system.
The 4-wire Corbus connection is used by the panel to communicate with
the module. Connect the RED, BLK, YEL and GRN terminals to the
Corbus terminals on the alarm panel. Board current draw: 40mA.
Diagram 2-4: HSM2208 Output Expander
2.4.3 Wireless Transceiver Module
The HSM2HOSTx 2-way wireless integration module provides com-
munication between wireless devices and the alarm controller.
Connect the HSM2HOSTx to the 4-wire Corbus of the alarm control-
ler according to the diagram below.
Diagram 2-5: HSM2HOSTx Wiring Diagram
After you have completed the wiring, reconnect power to the security
system. Board currant draw: 35mA
2.4.4 Power Supply Wiring
The HSM2300/2204 power supply/high-current output module pro-
vides up to 1.0A of additional current and can be used to add up to
four programmable outputs (HSM2204 only) to the alarm system.
The 4-wire Corbus connection provides communication between the
module and alarm panel. Connect the RED, BLK, YEL & GRN ter-
minals to the RED, BLK, YEL & GRN Corbus terminals on the
alarm controller. If O1 is not used, connect to Aux with a 1K resistor.
Board current draw: 1.2A.
Diagram 2-6: Power Supply Wiring
Wire Capacitance per 1000’
(300m)
Total Corbus Wire Length
15nF
5300’/1616m
20nF
4000’/1220m
25nF
3200’/976m
30nF
2666’/810m
35nF
2280’/693m
40nF
2000’/608m
SERIAL NUMBER
LED
SWITCH
SERIAL NUMBER
LED
SWITCH
CORBUS TO
HSM2HOST
AUX**
TO
EXPANSION
MODULE
KEYBUS
CONNECTION
TO CONTROL
PANEL
RED
BLK
YEL
GRN
RED*
BLK*
YE
L
GRN
Battery standby capacity is at least for 24 hours for Fire
Applications.
Recommended Battery: DSC model BD7-12.
*
Red, Blk, 12 V
DC
@ 20mA
**
Refer to the Specifications Chart above for
the maximum current draw.
BATTERY
12V 7Ah
Maximum battery
charge current is
360 mA
BATTERY 1
12V 7Ah
Maximum battery
charge current is
360 mA
Residential
Burglary
TRANSFORMER
16.5V
AC
/ 40VA
PTD1640U /
PTD1640
TO
BLK
BATTERY 2
12V 7Ah
Same rating as
Battery 1
CON1
BAT+ BAT-
120VAC/
60Hz
Primary
EU, South Africa,
Australia, NZ etc:
primary 230VAC/ 50/60Hz
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