Connecting An Analog Telephone; Figure 59 Analog Telephone Installation Overview - Nortel BCM1000 Installation And Maintenance Manual

external line to ATA 2
transmission rates (baud)

Connecting an analog telephone

Figure 59 shows the hardware configuration for connecting an analog device through an ATA 2 to
the Business Communications Manager.

Figure 59 Analog telephone installation overview

Central
Office
must follow the transmission network requirements
described in the data communication device specifications
over 1,200 bps require a modulation design compatible
with the telephone line bandwidth. Use a conditioned
external line to prevent data corruption during transmission
Note: Maximum loss from the ATA 2 analog terminal to the
CO must be 10 dB or less at 1 kHz. If the loss exceeds this
limit, condition the line. This loss ensures correct data
transmission for different types of data terminals.
ATA 2 power cord
BCM1000
Chapter 12 Installing Analog Terminal Adapters
ATA 2
Line loop resistance:
135 ohms maximum
Analog telephone
Terminal loop resistance:
1300 ohms maximum
Installation and Maintenance Guide
151