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BX-IOM Input and Output Module Technical Documentation

Version 1.3

Technical Documentation BX-IOM Input and Output Module

B-TD-BX-IOM-EN_V1-3.doc SPS / R.Türk Seite 2 (13)

Table of Contents 1 General & Validity................................................................................................................................... 3

1.1 Validity.............................................................................................................................................. 3 1.2 General............................................................................................................................................. 3 1.3 Notes about compatibility ................................................................................................................. 3

2 Functions & Structure............................................................................................................................ 4 2.1 Overview .......................................................................................................................................... 4 2.2 Loop circuit interface X2................................................................................................................... 5 2.3 Peripheral Interface X1 .................................................................................................................... 6

3 Planning guidelines................................................................................................................................ 8 3.1 Power Consumption......................................................................................................................... 8

4 Connection diagrams............................................................................................................................. 9 4.1 Principal connection ......................................................................................................................... 9 4.2 Integral X-LINE................................................................................................................................. 9 4.3 Connection example ...................................................................................................................... 10 4.4 Requirements for the external power supply circuit ....................................................................... 11

5 Technical Specifications ..................................................................................................................... 12

6 Document History................................................................................................................................. 13



1 General & Validity

1.1 Validity

The following documentation applies for the BX-IOM input/output module with the following issue state 20-2100002-01-01.

1.2 General

The BX-IOM (EXTENDED INPUT, OUTPUT MONITORED) can be connected to the X-LINE of Schrack Integral IP MX and Integral IP CX fire alarm control panels.

The module has a galvanically isolated output for monitored devices (e.g. sirens), which are supplied with power from exter-nal power supply sources. The input can be used for querying ground connected power sources.

The monitored output is split into three load ranges, and can control and monitor a load of between 20 and 1k.

Upon loss of the loop voltage a separate fail-safe position can be programmed for the output.

The addressing and assigning of the BX-IOM's parameters are carried out using PC-based software over the fire alarm control panel.

The module contains a short circuit isolator. In the event of a wire break or a short circuit, this function ensures that the fault is localised and that the fully-functioning operation of the loop circuit is simultaneously maintained.

1.3 Notes about compatibility

The BX-IOM is backwardly compatible with the BA-IOM (EG072842) under the following circumstances:

an external power supply is absolutely necessary, since the module is not powered by the X-LINE

there is no optocoupler input available

in the backward compatible mode (up V6.x integral software) the load will automatically be deter-mined

The BX-IOM input/output module from issue state 20-2100002-01-01 is supported by version 7.1 and above of the Integral software.

When connecting the module to existing systems, the Integral software must be upgraded to version 7.1 or higher.



2 Functions & Structure

The BX-IOM input and output module can be used is places where devices, e.g. sirens, should be monitored and controlled. Since the module can be connected in any position in a loop circuit, it is not necessary for the cabling for the monitored output or the input to run as far as the fire alarm control panel. It is therefore possible to achieve greater distances from the control unit.

The monitoring current of the primary inputs and outputs is set electronically via the parameter setting in the peripheral assis-tant. After power-up, the cable and load resistance are meas-ured and stored. If these values change by more than the toler-ance thresholds which are also set in the peripheral assistant, then a fault message is sent. Even when the model is in a state where it is controlling something, a test is still carried out to see if the necessary current is flowing to the device.

BX-IOM Input/Output module

In accordance with EN 54, the type label, which is attached to the module, has to be placed in access level 1 (i.e. outside on the cover of the installation box)!

Functions of the monitored output:

Automatic and manual comparison of the quiescent current level

Programmable load ranges

Programmable sensitivity of fault evaluation

Current measuring with fault message in active state (a defect in the output is detected)

Fail-save position programmable

Broken wire detection for triggering (activation when triggered and wire breakage)

Function of the input:

Measuring the resistance – programmable monitoring and trigger ranges

Programming as a feedback input of the control output

Function of the current monitoring:

Measurement of the current – programmable monitoring range

2.1 Overview

The BX-IOM module is screwed into a plastic case. The cable inlet for the X-LINE and peripheral cables use PG cable glands. The connection to the loop circuit and of peripheral cabling is carried out in each case using a 6 pole screw-type terminal block.

The following interfaces can be found on the BX-IOM module:

X1 Peripheral interface

X2 Loop circuit interface



2.2 Loop circuit interface X2

Pin Description Description

1 L1 Input/Output of the data loop

2 GND Return line for the data loop

3 GND Return line for the data loop

4 L2 Input/Output of the data loop

5 SHLD Pin insulator

6 SHLD Pin insulator

Electrical: In accordance with the requirements of the Integral X-LINE

Transmission type: Start-Stop-Operation, 8 data bits Manchester Format:

Baud rate: 9600 Baud or 4800b/s

Direction: bidirectional

Power supply: VLoop = 12 to 30 V

Protection: EMC and ESD via tranzorp diodes.

Connection: Screw terminal, 6 poles, with spacing of 3.81 mm, for wire thicknesses from 0.14 to 1.5 mm²

Cable: J-Y (St)Y 1x2x0.8 rt single pair, shielded, twisted Capacity: max. 120 nF / km LF-YY 1x2x0.8 rt



2.3 Peripheral Interface X1

2.3.1 Primary Output


1 VEXT External supply voltage

2 GNDEXT External ground

3 IM1+ Primary wire input positive pole

4 IM1- Primary wire input negative pole

5 OM1+ Primary wire output positive pole

6 OM1- Primary wire output negative pole

Type: short circuit resistant transistor

Switching voltage: 20 to 30 V

Connection: Loads from 20 to 1 k Load range 1: 160 to 1k Load range 2: 57 to 375 Load range 3: 20 to 75

Quiescent Current: 1 mA, 3 mA and 15 mA can be set using software-based configuration

Output current: max. 1.3 A Short circuit current: min. 1.45 A, max. 2.76 A

Switching frequency: 0.5 Hz max.

Pulse emission: 100 ms to 25 s (intervals 100 ms) 1 s to 30 s (intervals 1 s) 10 s to 300 s (intervals 10 s)

Line resistance: 5 to 50 Load range 1: 50 max. Load range 2: 20 max. Load range 3: 5 max.

Protection: EMC and ESD via tranzorp diodes and high voltage condensers

Physical characteristics: Screw terminal, 6 poles, with spacing of 3.81 mm, for wire thicknesses from 0.14 to 1.5 mm²



2.3.2 Primary input








Use: Querying of galvanically isolated contacts or key safes and release mechanisms

Monitoring voltage: 20 to 30 V

Monitoring current: typically 3.1 mA

Short circuit current: 3.63 mA max.

Terminal resistance: 220

Line resistance: 50 max.

wire: Length - max. 30 m, monitored for occurring wire break and short circuit


2.3.3 External power supply circuit








Use: Connection of the external power source

Voltage range: +24 V typically (20 to 30 V)

Power Consumption: Dependent on the devices connected, max. 3 A

Monitoring: By the module’s on board peripheral µC




3 Planning guidelines

The programming and configuration of the module can be found in the current Integral soft-ware documentation.

3.1 Power Consumption

Where there is a mixed operation of detectors and modules on the loop circuit, it must be ensured that the BX-IOM has the power consumption of approximately 5 detectors. Conse-quently the number of detectors that be controlled is reduced by 5 per BX-IOM module used, with a maximum of 32 BX-IOM modules permitted per loop circuit.

In the event of a power failure, the fire alarm control panel is supplied with power by rechargeable cells. According to the configuration and peripherals that are attached (modules, detectors, sirens etc.) it must be ensured, that the capacity of the rechargeable cells is sufficient to permit the operation of the fire alarm control panel for a period of time which exceeds the prescribed amount of time specified (in a standard or directive).

3.1.1 Typical power consumption values for the BX-IOM

The loop circuit module’s own current consumption should also be taken into account when carrying out the power consumption calculation.

Type Description Idle State In the event of an alarm

BX-IOM Input/Output module 430 μA 430 μA

3.1.2 Power Consumption Calculation

A calculation program is available for the power consumption calculation. There it is possible to enter the types of rechargeable batteries and the required supply interruption period (conforming to local standards and guidelines).



4 Connection diagrams

4.1 Principal connection

4.2 Integral X-LINE



4.3 Connection example

When laying a 230 V connection cable, it must be ensured that the cable is not laid directly above the module’s electronic circuitry.

For the operation of the BX-IOM an external power supply is necessarily required !

Connection monitored siren

The device (siren) is controlled by this output. It is connected to the connections (OM1+ / OM1-). The re-quired supply voltage for controlling the outputs and the required quiescent current for monitoring the de-vice in idle mode is connected to the terminals VEXT and GNDEXT.

Connection monitored input



Connection monitored electronic devices

Elements with electronic input switching are called electronic devices, when they do not deliver a regular resistance value in the event of low measuring voltages for wire break and short circuit monitoring. It is therefore necessary to ensure that there is a defined resistance value, to ensure that the line monitoring occurs.

In this example a 1k resistor is selected, so that this resistor can be used where there is low power (ca. 1W). To guarantee that monitoring is carried out, the parallel resistor must be connected directly to the de-vice’s terminals. The load range is configured using PC-based software (Listgenerator) over the fire alarm control panel.

4.4 Requirements for the external power supply circuit

The requirement for the external power supply circuit is entirely dependent on the current uptake of the device and its operating voltage. Depending on the device and its uses, a buffered power supply unit may be needed.

If a power consumption calculation is performed, the internal power supply of the Integral IP MX (B5-PSU) or Integral IP CX (B6-PSU) can be used.

To cover greater distances to the device or in the event that the control unit's power supply can not supply sufficient power, it is recommended that a buffered external power supply should be used. In this instance, a power consumption calculation should also be carried out beforehand.

The relevant applicable standards and directives for external power supplies must be ob-served!



5 Technical Specifications

Controller: 2 pcs. Microchip 16F687, 8 Bit Microcontroller

Memory: Data: 128 bytes on chip Program: 2k *14 bits on chip

Address memory: EEProm 256 bytes on chip

System connection: 6 pole screw-type terminal Analogue loop over two wire core Integral Loop Technology Protocol max. 32 pcs. BX-IOM/Loop

Short circuit isolator: max. line voltage Vmax = 30V min. line voltage Vmin = 12V max. nominal direct current ICmax = 100 mA max. nominal switching current ISmax = 180 mA. max. leakage current ILmax = 10 µA max. series impedance ZCmax = 0.60 Switching from closed to open only by Nominal switching current or disablement command Switching over from open to closed only using actuation command min. turn off or operating voltage VSOmin = 10V max. turn off or operating voltage VSOmax = 30V

Peripheral connection: 6 pole screw-type terminal External supply 20 to 30V, primary lines

Protection: EMC using tranzorp diodes and broadband decoupling of the power supply

Dimensions

Circuit board: Length 67mm x Width 67mm x Height 20mm

Case: Length 94mm x Width 94mm x Height 57mm



6 Document History

Version Date Most important changes compared to the previous version

First edition 11.11.2009

Version 1.1 04.05.2010 Chapter 1.2 & 4.3

Version 1.2 10.08.2010 Chapter 1.2, 2, 2.3.2, 4.2

Version 1.3 10.09.2010 Chapter 1.3, 2.3.1, 4.3

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