Nortel Networks BCM1000 manual Chapter Installing Analog Terminal Adapters

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Chapter 12

Installing Analog Terminal Adapters

This 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 Business Communications Manager system through a digital station module. Examples of analog voice devices are analog telephones or answering machines. Examples of data communication devices are modems and fax machines.

The ATA 2 provides on-premise service only (unexposed plant only).

Understanding pre-installation requirements

Before you attempt to install an ATA 2 device, ensure that your system and environment meet the requirements listed in this section.

Environmental requirements

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 ATA2

Operating requirements

Ringing signal (North America):

Frequency Voltage:

Ringing signal (Europe):

Frequency voltage:

Ringer equivalence number

Battery feed voltage

Loop current

FIC code

ATA 2 to Business Communications Manager system loop resistance (cable only)

Analog loop resistance on terminal side for voice applications (cable only)

Analog loop resistance on terminal for data applications (cable only)

20 Hz ± 1 Hz

80 V rms ± 10%

25 Hz ± 1 Hz

75 V rms ± 10%

3

-48 V dc ± 10%

20 mA minimum OL13ABC

135 ohms maximum (for example: 800 m of 0.5 mm wire or 2,600 ft. of 24 AWG wire)

1,300 ohms maximum (for example: 4,600 m of 0.4 mm wire or 15,000 ft. of 26 AWG wire)

200 ohms maximum (for example: 730 m of 0.4 mm wire side or 2,400 ft. of 26 AWG wire)

Installation and Maintenance Guide