Mitel T941AM8 User manual

T941AM8 ALARM MODULE
INSTALLATION GUIDE

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All rights reserved

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1 INTRODUCTION
T941AM8 has 8 physical inputs for connection to external alarm devices. Inputs are
galvanically isolated, have transient protection, and can be programmed for making or
breaking contacts.
Figure 1. The Alarm Module.
Supply voltage: 12.5 V DC ± 10%
Current consumption: max 150 mA + 100 mA for all inputs
For selection of input connection, see 7 Connection of
Alarm Inputs for Voltage-Free Make/Break.
Delivery includes: T941AM8
Modular system bus cable
Tools, etc. required: Screwdriver
Screws for installation
Soldering iron

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1.1 CIRCUIT BOARD OVERVIEW
Figure 2. The circuit board of the Alarm Module.
ICO1
ICO2
8
1
18
4
1
21
61
J05
J07
J09
J04
SWO1
SW02
S04
LEDO1
IC03
S03
J08
S06
S13
18
LEDO2
S14
S05
J01 J02
J06
J03
S01 S02
1
6
LED10
LED03
RE01

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2 INSTALLATION
The alarm module should be placed in a dry environment with a temperature range of 0 to
+40°C.
The figure below shows dimensions for installing the alarm module.
Figure 3. Mounting dimensions for the Alarm Module.
Note: To facilitate service after the unit is installed, we recommend a free space
of about 50 mm above and 150 mm below the unit.
Use a screwdriver or similarto release the cover byapplying a light pressure to the two snap
catches (1) and remove the cover (2).
Figure 4. Releasing the cover of the Alarm Module.
9 9
275
56,5
188,5
65 130
112
Dimensions (H x W x D)
275 x 130 x 60 mm
2
1
1

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2.1 INSTALLATION TOGETHER WITH OTHER UNITS
Figure 5. Mounting two units together.
1 Remove upper and lower covers. The lower rectangular covers are used to
fasten units to each other (1).
2 Fasten the module with three screws; see figure 3.
1
1

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3 ADDRESSING
Select the proper address by setting address selector switch SW01. The address must not
be 00 nor the same as any other 900 unit address.
Figure 6. Addressing switch on the Alarm Module.
Note: When connected to the Central Portable Device Manager (CPDM), the
module address has to be in the range 01 to 0F.
For information about how to distribute alarms from the CPDM to the Alarm Module, see
Installation and Operation Manual, CPDM.
SW01
OFF ON
1
8

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3.1 HOW TO SET THE ADDRESS
The address consists of two hexadecimal digits that are selected by the eight sections of the
address switch. The eight sections are divided into two groups, each with four sections (1-4
and 5-8). Sections 5-8 select the first (most significant) hex digit and sections 1-4 select the
second hex digit.
Figure 7. Setting the address of the Alarm Module.
1
8
2 5 6 8
ONOFF
5 6 8
switches 1 - 4,
second hex digit (D)
switches 5 - 8,
first hex digit (4)
1 3 4
2
1 3 4
7
7
1
8
4
5

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4 WIRING RUNS
Theplasticpartition(shaded infigure8)is scoredtofacilitatebreakingat convenientintervals.
Figure 8. Breaking the partition for wiring.
1 Use pliers to break off a suitable section.
2 Run the wiring out through the partition.
Wiring can be run three ways from the Alarm Module:
Figure 9. How to run cables from the Alarm Module.
• Remove the rectangular pieces and run the cabling out through the side (1).
• Break off sections at short side of case and run the cabling downwards (2).
• Run the cabling through the round holes at the bottom of the case (3)
Secure the wiring with cable straps.
1 2 3 4 5 6
1
2
1
2
1
2
3
1
3

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5 CONNECTION OF SYSTEM BUS
Figure 10. Connection of system bus with modular bus cable.
• Connect modular bus cabling to J01 and J02 (1)
or if required
• Connect two-wire connection to J03 screw 5 and 6 (2)
(see figure below)
Figure 11. Connection of system bus with twisted-pair and supply voltage.
Note: The data lines are polarised. Use only twisted-pairs for two-wire
connections!
1 2 3 4 5 6
1
2
1
J03
4
5 BUS 1
6 BUS 2
3
1 +12V
2 GND
Supply voltage in
Supply voltage out
System bus

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6 CONNECTION OF SUPPLY VOLTAGE
Supply voltage is connected to screw 1 and 2 of screw connector J03 (see figure 11).

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7 CONNECTION OF ALARM INPUTS FOR
VOLTAGE-FREE MAKE/BREAK
1 Connect twisted-pairs to alarm inputs that are to be used: J07 for inputs 1-4 and
J08 for 5-8.
2 Connect supply voltage to J09. This can be taken from J03-3 and -4. However,
for galvanic isolation an external power supply must be connected to J09.
Figure 12. Connection of alarm inputs.
1
2
3
4
5
6
J07
7
8
1 EXTERNAL 12VDC +
2 EXTERNAL 12VDC –
J09
ALARM INPUT 1
ALARM INPUT 2
ALARM INPUT 3
ALARM INPUT 4
1
2
3
4
5
6
J08
7
8
ALARM INPUT 5
ALARM INPUT 6
ALARM INPUT 7
ALARM INPUT 8
Alarm input 1
Alarm input 2
Alarm input 3
Alarm input 4
Alarm input 5
Alarm input 6
Alarm input 7
Alarm input 8
Supply voltage

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8 INSTALLATION TEST
After the installation, a functional check is made.
If a malfunction occurs, check that the functional indicator (LED) on the unit shows a steady
light. If not proceed as follows.
Figure 13. Function indicator on the Alarm Module.
• No light: No power, check power supply. Hardware fault, contact your dealer.
• Slow blink (0.5 Hz): Program error. Restart the unit by switching the power off and
on.
• Fast blink (0.8 Hz): Communication error. Check bus polarity and addressing of the
unit.
• One blink every fourth second: Unit in test mode. Contact your dealer.
Activate an input and check that the handsets respond correctly. Repeat this for every input
that can generate alarms including handsets.
Function indicator

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9 PROGRAMMING
System settings in the Alarm Module are factory set.
Default settings are:
• Information is transmitted to the Basic Alarm Manager in the CPDM when an input
is opened or closed.