
Installation and Operation Manual Chapter 4 Troubleshooting and Diagnostics
ASM-40CD Ver. 1.0 Viewing Alarm Status 4-7
Parameter Type Function Option Option Indicates:
BERT Built-in BERT circuit is enabled.
For BER testing, a 511-bit
pattern generator must also be
enabled in the remote DTE
CANCEL Cancellation of one of the tests,
set above
DIG Local digital loopback is set in
local modem
REMOTE DIG
ENABLE
Read REMOTE DIG Local DIG from the remote
modem
BERT RESULTS Read Viewing the BER results for
one of the tests performed
by the built-in BERT circuit
0.0E-0 to
9.9E-9
BER test result
ON LEDs are turned on for a few
seconds
LED TEST Write Testing front LEDs of
ASM-40CD or standalone
modem
OFF LEDs are not tested
ENABLE Enables remote loopback (RLB),
from the DTE
REMOTE
LOOPBACK
Write Enables remote loopback
activation from the DTE
DISABLE Disables DTE RLB signal
ENABLE Enables local loopback (LLB),
from the DTE
LOCAL
LOOPBACK
Write Enables local loopback
activation from the DTE
DISABLE Disables DTE LLB signal
ON ASM-40CD activates a local
digital loopback when remote
modem initiates remote digital
loopback
REMOTE DIG Write Enables reception of the
local digital loopback
activation patern from
remote modem, when it
activates a remote digital
loopback
OFF ASM-40CD does not activate a
local digital loopback when
remote modem initiates remote
digital loopback
4.4 Viewing Alarm Status
The Modem Alarm Status screen (
Figure 4-6
) enables viewing messages stored in
the Alarm Buffer of the ASM-40CD and remote modems. The screen also shows
synchronization loss and DTE loopback signaling states.
To view the Alarm Status:
• Type: NODEnn DSP ALT<Enter>.
The screen shown in
Figure 4-6
appears.
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