Nortel Networks BCM50 - Manual (Page 120)

120 Chapter 11 Installing the analog terminal adapter
NN40020-302
Analog data device
The ATA2 connects a standard analog data device, such as a fax or modem, to the BCM50 system.
The figure Data communication device installation overview on page 120 shows an installation
overview for connecting a data communication device through an ATA2 to the BCM50 system.
Figure 54 Data communication device installation overview
Installing the ATA2
This section provides information about installing the ATA2:
• Connecting the ATA2 on page 120
• Mounting the ATA2 on page 121
• Test insertion loss measurement on page 122
Connecting the ATA2
After you set up the correct environment, connect the BCM50 system and the analog device to the
ATA2, and then connect the power. See the figure
ATA2 top view on page 120.
Figure 55 ATA2 top view
The figure ATA2 pin outs on page 121 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 jack Line jack Power supply connector receptacle