Bosch Appliances F.01U.252.722 user manual 4RS-485 interface, 5Antenna, Relay output

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12 en DescriptionNurseCall Relay Unit

2.2.4RS-485 interface

One NurseCall Main Unit and up to 32 NurseCall Relay Units can be connected by a RS-485 bus. The bus must be connected to pins 2 and 5 of the RS-485 socket.

For connector wiring, see Section A.5.4 RS-485 socket (unit rear), page 34.

NOTICE!

Keep polarity equal when connecting further units to the RS485 bus!

NOTICE!

Maximum RS485-bus length: 1200 m.

Use only one twisted pair cable for the interconnection.

NOTICE!

The receiver units located at the two ends of the bus must be terminated with a 100 Ohm resistor. See Section 3.2.7 Connecting the RS-485, page 17 for more information about the jumper setting.

In this configuration, you always should connect the NurseCall Main Unit first. The NurseCall Relay Units must then be connected to the RS485-bus one by one, not at the same time.

Relay output

In the same connector, a potential free contact is available. It is a low current switching contact. The relay (potential free, switching power max. 48 V / 0.5 A) is activated at a call for help, call for assistance or fire alarm. This relay can be set as closing or switching contact (cycle of 10 seconds on / 10 seconds off). This feature can be used to drive a signal lamp for example.

For connector wiring, see Section A.5.4 RS-485 socket (unit rear), page 34.

For relay setting, see the user manual of the NurseCall Main Unit.

2.2.5Antenna

The antenna is connected to the NurseCall Relay Unit using the adapter supplied with the unit.

See Section 3.2.4 Installing the antenna, page 14.

F.01U.252.722 V1 2011.12

User Manual

Bosch Security Systems

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Contents NurseCall Relay Unit Page Table of Contents Maintenance OperationDisposal AppendixSafety instructions Importance of safety instructionsDisregarding safety rules General safety instructions1Observation and information Description General descriptionTop view Yellow buttonBottom view Front view Relay Unit rear viewStatus Detailed description NurseCall Relay Unit V2.02 BN111.242.00ALoudspeaker DisplayKeys Function 4RS-485 interface 5AntennaRelay output 3Installation List of contents1Unpacking Installation Installation on a piece of furnitureWall installation Installing the antennaConnecting to the mains Disassemble the unit see .5.1 Disassembling the unit, 7Connecting the RS-485 Incorrect connectionCorrect connection 8Connecting the RS-232 to the Relay Plus Unit Setting the 100 Ohm termination jumperProgramming GeneralitiesDate TimeFirst use Locating ?OFF / on Relay Unit ID · +Special settings Relay Unit OFFAssistance & Fire Priority Printer/display setup on the Relay Plus Unit Assistance & Fire NonpriorityMultitone Texte BAD/WC + HILFE-2 Standardtexte Technik + NOTRUF2Display Zettler ¬ Display ZettlerCriter + 1 Spaces ¬ Display Norsk Rota.of AlarmsYES ¡ Display NorskDisplay ffrrrb FL 2 +RO 3 +BE1 Selection Display NorskAdjusting the loudspeaker volume Consulting the alarm or event buffer5Operation Switching between alarm and event buffers indication Display indicationsFirst information block Second information blockLocal ACK Help6Maintenance Monitoring the power supplyMonitoring the backup battery Checking the systemCleaning Parts replacementDisassembling the unit Backup battery replacing Important Safety InstructionsProcedure Disassembly BatteryDisposal Returning to the manufacturerElectrical specifications Dimensions and weightAAppendix Criterion Number Alarm a or Event E Comment List of criteriaConnectors Power socket unit bottomLine socket unit bottom RS-232 socket Relay Plus Unit rearPage Bosch Security Systems

F.01U.252.722 specifications

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