Installing The Analog Terminal Adapter; Configuration Overview; Analog Telephone - Nortel BCM50 Installation And Maintenance Manual

Chapter 11

Installing the analog terminal adapter

This section provides installation instructions for the analog terminal adapter 2 (ATA2) or ATA.
The ATA2 connects a standard analog voice device or data communication device to the BCM50
system through a digital station module. Examples of analog voice devices are analog telephones
and answering machines. Examples of analog data communication devices are modems and fax
machines.
The ATA2 provides on-premise service only (protected plant wiring only).
Refer to the following sections for information on installing an ATA2:
•

"Configuration overview"

• "Installing the ATA2" on page 118
• "Configuring the ATA2" on page 121
Refer to Table 5 on page 45
Configuration overview
This section describes environment configurations for connecting analog and data devices to the
main unit using an ATA2:
•

"Analog telephone"

• "Analog data device" on page 118
Analog telephone
Figure 46 on page 117
ATA2 to the main unit.
Figure 46 Analog telephone installation overview
for ATA2 specifications.
shows an installation overview for connecting an analog device through an
ATA2 power cord
BCM50
Line loop resistance:
135 ohms maximum
Analog telephone
ATA2
Terminal loop resistance:
1300 ohms maximum
BCM50 Installation and Maintenance Guide
117