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Installation and Maintenance Guide
Chapter 13
Install Analog Terminal Adapters
This chapter provides installation instructions for the Analog Terminal Adapter 2 (ATA 2).
The Analog Terminal Adapter 2 (Business Communications Manager ATA 2) connects a standard
analog voice device or data communication device to the Business Communications Manager
system. Examples of analog voice devices are single-line telephones or answering machines.
Examples of data communication devices are modems and fax machines.
The Business Communications Manager ATA 2 provides on-premise service only (unexposed
plant only).
Before Installation
Before you attempt to install an ATA 2 device, ensure that your system and environment meet the
requirements listed in this section.
Environmental requirements
Check the following environment requirements for the Business Communications Manager ATA
2:
Operating requirements
The following are requirements for operating other analog or data communication devices:
Line voltage (120 V) 102 – 132 V ac
Line voltage (230 V) 207 – 253 V ac
Temperature 0 – 50°C (32 – 122°F)
Relative humidity 5% – 95% non-condensing
Bridge taps Not allowed between the Business Communications Manager system
loading coils and Business Communications Manager ATA 2
Ringing signal (North America):
Frequency Voltage:
20 Hz ± 1 Hz
80 V rms ± 10%
Ringing signal (Europe):
Frequency voltage:
25 Hz ± 1 Hz
75 V rms ± 10%
Ringer equivalence number 3
Battery feed voltage - 48 V dc ± 10%
Loop current 20 mA minimum