Bosch MIC440AXWUP14636N, MIC-550IRW36N, MIC-550IRW28N, MIC-550IRB36N, MIC-550IRB28N Installation
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MIC Power Supply Unit Extension
Customers can extend the distance between their MIC camera and the MIC PSU by using two junction boxes
(customer-supplied). The boxes must be weather proof or explosion proof, depending on the model and the physical
location of the box. The second junction box is required to reduce the size of the cable and to reduce the amount of
conduit connections to the MIC PSU.
All cables used outdoors must have a UV-resistant outer jacket, or must be installed inside permanently earthed
metal conduit. See the table below for the maximum distance and wire gauge recommended for each camera. The
maximum distance is the distance between the two customer-supplied junction boxes.
28 September 2012
Notes:
1. Based on 18 VAC -15% = 15.3 VAC as the minimum voltage.
2. To achieve the distances listed, any models with the heater option MUST USE two conductors for camera power
and two additional conductors
3. For specific details about extending the distance between a MIC440 explosion-protected camera and a MIC PSU,
please see the MIC440 User Manual.
4. MIC IR models are not approved for extended distances because of the special power requirements for the IR
illuminators.
See the next page for diagrams of the connections between the MIC cameras, the junction boxes, the MIC PSU, and
the head-end system.
Bosch Security Systems
860 Greenfield Road
Lancaster, PA, USA 17601
for the heater.
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MIC Power Supply Unit Extension
Connections for MIC camera models 400 (AL and SS), 412, 500 Classic and Pro, 550 Standard and Classic
28 September 2012
Bosch Security Systems
860 Greenfield Road
Lancaster, PA, USA 17601
Page 2 of 3
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