Section 300-Installation Chapter 6. Peripheral Equipment576-13-300 DBS 576 (USA), issued 6/2/98 6-23Doorphone AdaptorGuidelines• The Doorphone Adaptor (VB-43701) requires a door opener. In addition, aDoorphone (VB-43705) is normally used with the Doorphone Adaptor. Dooropeners are not sold by Panasonic, but can be purchased separately from anelectronics dealer.• Each Doorphone and door opener use one trunk port.• One or two door openers and two Doorphones can be connected to a DoorphoneAdaptor.• The Doorphone can be set to call time for 15 seconds, 30 seconds, or one minute.• The Door opener can be set to open for one second, 2 seconds, or 15 seconds.• The maximum permissible wiring distance between the Doorphone Adaptor and aLTRK/8 card is limited to a maximum loop resistance of 2 Ohms.• The maximum permissible resistance of the wiring between the DoorphoneAdaptor and Doorphone is 20 Ohms.• The following tools are required to install the Doorphone Adaptor:• Phillips screwdriver• Needle-nose pliers• Diagonal cuttersInstallation1. Remove the cover from the Doorphone Adaptor.2. Set the switches in the Doorphone Adaptor according to Figure 6-24.3. Remove the cable punch-out plate (Figure 6-23) in order to make an opening forthe cables coming into the Doorphone Adaptor.To remove the plate, cut the groove with diagonal cutters, then bend theplate back and forth with needle-nose pliers to remove it.4. Mount the Doorphone Adaptor on the wall using the three screws provided withthe unit.CAUTION:• Turn the power switch and the external breaker OFF, and disconnect theAC cable before installing the Doorphone Adaptor.
