Compatible Systems Octal V.35 - 10/100 RIOP Instruction Manual Page 178

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61200780L1-1C © 2004 ADTRAN, Inc. 178
ATLAS 800 Series System Manual Octal FXS Option Module
Test
TX ABCD Forces the Transmit Robbed Bit Signaling (Tx RBS) to a specified value. Values
include
OFF, 0000, 0101, 1010, or 1111.
1kHz Tone Write security: 3; Read security: 5
Sends a 1kHz tone into the following locations, based on test selection: Near
sends the tone out the FXS port, while Far sends the tone into the digital PCM
stream of the ATLAS 800 Series controller. These tests are useful for verifying a
voice path.
Loopback Write security: 3; Read security: 5
Activates loopback tests on a per-port basis.
Calls may be affected when activating the Tx ABCD test. This test is
not valid when the port is used in the
DIAL PLAN.
Option Description
Off
Normal operation.
Analog
Loops the 2W test on itself.
Digital
Loops digital data entering the FXS from the ATLAS controller on itself.
Both
Processes both analog and digital loopback tests.
Loopback tests disrupt the call in progress on the selected FXS port.
Table 5. FXS 2W State Table
Test Tip Output Ring Output
Off No test active No test active
Active Ground Supervision voltage
Tip Open High impedance Supervision voltage
Rev. Battery Supervision voltage Ground
Disabled* High impedance High impedance
Ringing Ringing voltage Ringing voltage
* Disables the output of the FXS port; it does not disable the test.
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