ADTRAN Atlas 550 System Manual page 158

Section 4 User Interface Guide
M (E&M-8) > T
ODULES
Write security: 4; Read security: 5
Activates 2W (E&M) tests on a per-port basis. Options include
. The 2W tests will disrupt the active call on the selected E&M port. Table 5 displays the
E-L C
EAD LOSED
state of the 2W conductors during each test.
T
EST
Off
E-Lead Open
E-Lead Closed
M (E&M-8) > T
ODULES
Write security: 4; Read security: 5
Forces the Transmit Robbed Bit Signaling (Tx RBS) to a specified value. Values include
or .
1010, 1111
Calls may be affected when activating the Tx ABCD test. This test is not valid when the
port is used in the
M (E&M-8) > T
ODULES
Write security: 3; Read security: 5
Sends a 1kHz tone into the following locations, based on test selection:
VF port, while sends the tone into the digital PCM stream of the ATLAS 550 controller. These tests
F
AR
are useful for verifying a voice path.
M (E&M-8) > T
ODULES
Write security: 3; Read security: 5
Activates loopback tests on a per-port basis.
O
FF
A
NALOG
D
IGITAL
Loopback tests disrupt the call in progress on the selected E&M port.
M (E&M-8) > C
ODULES
Write security: 3; Read security: 5
All of the following configurable parameters apply to the individual E&M ports.
158
> T 2W
EST EST
Table 5. E&M 2W State Table
M
ODULE
E-lead follows the Rx (received) signaling bits
Forces an on-hook situation on the port
Forces an off-hook situation on the port
> TX ABCD
EST
.
D P
IAL LAN
> 1 H T
EST K Z ONE
> L
EST OOPBACK
Normal operation.
Loops the 2W test on itself.
Loops digital data entering the E&M from the ATLAS controller on itself.
ONFIG
© 2004 ADTRAN, Inc.
(no tests are active),
O
FF
O
UTPUT
N
ATLAS 550 System Manual
E-L O
EAD
O , 0000, 0101,
FF
sends the tone out the E&M
EAR
61200305L2-1B
, and
PEN