audioShare Control Relay Module Installation Guide v00r01-090421.wpd
10
Male
RJ45 Wiring
RJ45 Wiring
audioShare
®
uses the EIA/TIA568B, AT&T 258A Ethernet wiring standard (see below). Test each
cable connection with a standard Ethernet cable tester to ensure proper operation.
Maximum Number of Units
Total system capacity is limited to 255 unit addresses, but all addresses above 200 are reserved for
door stations, special home automation units and other control functions (CRMs, for example) as
well as future expansion. Therefore, a maximum of 200 wall stations and/or Audio Access Modules
(AAM) can be installed in a given system. Door stations count in the upper 55 reserved addresses
(240-247). CRMs also count in the upper 55 addresses (201-239).
The capacity of a single hub is 16 units (up to 5 per port). The capacity of a PIM/PEM is 16 units
(up to 8 per leg). Both of these limitations are based mostly on the capacity of the power supply
which is rated at 130 Watts. It also takes into account the amperage rating of the Cat. 5 wire and
the maximum length of 500 ft. (150 meters).
CRMs use one tenth the power of a wall station, therefore ten CRMs are equivalent to one wall
station (one unit).