118 Chapter 11 Installing the analog terminal adapter
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Analog data device
The ATA2 connects a standard analog data device, such as a fax or modem, to the BCM50 system.
Figure 47 shows an installation overview for connecting a data communication device through an
ATA2 to the BCM50 system.
Figure 47 Data communication device installation overview
Installing the ATA2
This section provides information on installing the ATA2:
• “Connecting the ATA2”
• “Mounting the ATA2” on page 119
• “Test insertion loss measurement” on page 120
Connecting the ATA2
After the correct environment has been set up, connect the BCM50 system and the analog device
to the ATA2, then connect the power (see Figure 48).
Figure 48 ATA2 top view
Figure 49 shows the pinouts for the connection cables.
Data communication
device
ATA2
BCM50
Line loop resistance:
135 ohms maximum
Terminal loop resistance:
200 ohms maximum
ATA2 power cord
=
24 V ~
0.006 A
Terminal jackLine jack Power supply connector receptacle
