Divar Installation Manual Hardware setup
EN
Keyboard connections
The keyboard input and output connectors are used to connect an external keyboard to the unit. Connect the keyboard to the KBD IN connector. Up to 4 external keyboards can be connected when the optional keyboard port expander (LTC2604) is used.
For short distances (up to 30m), standard
For distances over 30m between keyboard and Divar, the Keyboard Extension Kit (LTC 8557) must be used. This kit provides junction boxes, cables and the appropriate power supply for the external keyboards. The recommended cable type is Belden 9841 or equivalent.
Divar connection
The KBD IN and KBD OUT connectors can also be used to connect several Divar units to each other. The
The RS485 connection is not galvanically separated. If you have an installation where Divars are connected via RS485 and they are not located close to each other, you must ensure that they are grounded via the same, clean grounding wire.
Specifications
Communicaton protocol: | RS485 |
Maximum signal voltage: | ± 12V |
Power supply: | 11 - 12.6V, maximum 400mA |
Maximum cable length: | 1.5 kilometers |
Cable type: | black |
Termination: | 390 Ohm terminator |
Keyboard In - RJ11 socket (KBD IN)
Pin no. | Signal |
1 | +12 V DC (11V Min to 12.6V Max, 400mA Max) |
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2 | System ground |
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3 | Keyboard plus line |
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4 | Keyboard minus line |
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5 | System ground |
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6 | System ground |
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Keyboard out - RJ11 socket (KBD OUT)
Pin no. | Signal |
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1No Connection
2System ground
3Keyboard minus line
4Keyboard plus line
5System ground
6No Connection
6 1 4 2
Panel view
Bosch Security Systems
