Section 4, User Interface Guide ATLAS 550 System Manual
152 © 2002 ADTRAN, Inc. 61200305L1-1F
Controller and the voice port if the port is configured in the DIAL PLAN. The bit pattern is formatted ESF
RBS.
MODULES (FXS-4/8) > STATUS > TX ABCD
Read security: 5
Transmit Signaling bits have local significance only, and represent signaling between the ATLAS 550
Controller and the voice port if the port is configured in the DIAL PLAN. The bit pattern is formatted ESF
RBS.
MODULES (FXS-4/8) > TEST
Write security: 4; Read security: 5
These options initiate different types of tests and display test results.
MODULES (FXS-4/8) > TEST > PORT
Write security: 5; Read security: 5
Displays the operating port. There are 4 available interfaces on the Quad FXS Option Module and 8 on the
Octal FXS Option Module.
MODULES (FXS-4/8) > TEST > TEST 2W
Write security: 4; Read security: 5
Activates 2W (FXS) tests on a per-port basis. Options include OFF, ACTIVE, TIP OPEN, REV. BATTERY,
DISABLED, and RINGING. The 2W tests will disrupt the active call on the selected FXS port. Table 3 displays
the state of the 2W conductors during each test.
Table 3. 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.