Bosch APC-AMC2-4R4CF Installation Manual

Also see for ADS-AMC2-4R4CF: Manual Installation manual Installation manual

16 en | Installing Access Modular Controller 22020-01 | V02 | Installation manual Bosch Security Systems B.V.4.4 Closing the CaseBefore aligning the covers, unplug any pluggable screw connectors. Insert the hooks on thelower edge of the front cover into the lugs on lower edge of the plastic back cover [1]. Pleaseensure that the BOSCH logo is not upside-down. The upper edge of the front cover now alignswith the two-point snap-in closures on the upper edge of the back cover [2], and may thus beclicked gently into place.Hence the closing process is the reverse of the opening process.12Figure 4.4: Closing the caseNotice!Risk of damage to equipmentIf excessive force is required to close the front cover then it is probably incorrectly hookedinto the back cover. In such cases the display ’Dialog’ button in the front cover will bemisaligned and will not function correctly.4.5 CablingNotice!Risk of malfunctionThe cables used in the AMC2-4R4 access control system are not prone to electricalinterference. However, you should avoid routing cables close to heavy load switching cablesand equipment. If this is unavoidable, cross the cable at right angles every 1 to 2 m (3 to 6 ft)to reduce interference.4.5.1 Conductor data for power to AMC2With the calculation below you can find out which cable type must be used. If you connect thepower supply and the AMC-device with the delivered cable set from the enclosure thecalculation is not necessary.For distances below 25 m (75 ft) use AWG18 conductors (1mm²). For longer distances, installan additional power supply close to the AMC2 controller.Please, calculate the voltage drop by checking the conductor specifications for characteristicresistance values. The voltage drop shall not exceed 2 V.Example:Length = 100 m/328 ft