149Installation and Maintenance GuideChapter 12Installing Analog Terminal AdaptersThis chapter provides installation instructions for the Analog Terminal Adapter 2 (ATA 2).The ATA 2 connects a standard analog voice device or data communication device to the BusinessCommunications Manager system through a digital station module. Examples of analog voicedevices are analog telephones or answering machines. Examples of data communication devicesare modems and fax machines.The ATA 2 provides on-premise service only (unexposed plant only).This section includes:• “Understanding pre-installation requirements” on page 149• “Connecting an analog telephone” on page 151• “Connecting a data device” on page 152• “Connecting the ATA 2” on page 153• “Mounting the ATA 2” on page 154• “Testing insertion loss measurement” on page 155• “Configuring the ATA 2” on page 156Understanding pre-installation requirementsBefore you attempt to install an ATA 2 device, ensure that your system and environment meet therequirements listed in this section.Environmental requirementsLine voltage (120 V) 102 – 132 V acLine voltage (230 V) 207 – 253 V acTemperature 0 – 50°C (32 – 122°F)Relative humidity 5% – 95% non-condensingBridge taps Not allowed between the Business Communications Manager systemloading coils and Business Communications Manager ATA2Operating requirementsRinging signal (North America):Frequency Voltage:20 Hz ± 1 Hz80 V rms ± 10%Ringing signal (Europe):Frequency voltage:25 Hz ± 1 Hz75 V rms ± 10%Ringer equivalence number 3
