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200 Chapter 13 Installing Analog Terminal Adapters
P0993298 02
Connecting the ATA 2
After you have determined that the proper environment exists, you can connect the ATA 2 to the
line and set. Refer to Figure 76.
Figure 76 Single line telephone installation overview
Figure 77 shows the pinouts for the connection cables.
Figure 77 ATA 2 pin outs
Single-line telephone
ATA 2
BCM1000
Line loop resistance:
135 ohms maximum
Terminal loop resistance:
1300 ohms maximum
Central
Office
ATA 2 power cord
TCM*
TCM*
Ring (B-Lead)
Tip (A-Lead)
Line Jack
Terminal Jack
* The TCM input is not polarity sensitive.