44 Chapter 2 Telephony hardwareN0008587 014X16 media bay module(North American systems only)The 4X16 provides both analog trunk connections and connections to digital telephones. Themodule is a combination of a CTM media bay module, with four analog lines, and a DSM16-digital telephone media bay module. Each of the four ports supports Caller ID and disconnectsupervision. An auxiliary port beside Line 1 allows you to use an analog telephony device, such asa modem, fax or telephone, to share the trunk. Figure 20 shows a diagram of the 4X16.The 4X16 has one amphenol connector and five RJ11 connectors on the faceplate. For details onthe 4X16 wiring, refer to Chapter 12, “Installing Analog Terminal Adapters,” on page 149.Figure 20 Faceplate of 4X16 module LEDS, connectors, and jacksAnalog station modules and analog devicesThe Business Communications Manager supports two types of analog station media bay modules.The system also allows you to attach analog devices to digital media bay modules by installing ananalog terminal adaptor (ATA2) between the media bay module and the telephone. Finally, theFEM media bay module supports Norstar-based analog modules. All of these modules may haveslightly different features or capabilities.The table below provides a quick overview of the engineering information and feature function foreach type of analog device supported by the system.Table 6 Analog engineering specificationsFeature ATA2 ASM8 GASM8 Norstar ASMRinging Frequency(North America)20 Hz ± 1Hz 20 Hz ± 1Hz 20 Hz ± 1Hz 20 Hz ± 1HzRinging Frequency(Europe)25 Hz ± 1Hz 25 Hz ± 1Hz 25 Hz ± 1Hz 20 Hz ± 1HzDSM16 amphenolconnectorPower LEDStatus LEDLine 1AuxLine 2Line 3Line 4
