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SHM-768K
4.3 Operating Procedure
The SHM-768K operates unattended once installed (refer to
Chapter 3
).
Intervention is only required when:
• The SHM-768K is set up for the first time.
• The SHM-768K must be adapted to new operational requirements.
• Diagnostic loops are required.
4.3.1 P
OWER
-
ON
P
ROCEDURE
The SHM-768K is turned on as soon as the AC power cord is connected to the
AC power mains outlet. The PWR LED should light up, indicating that the
SHM-768K is on. Verify that the local and remote SHM-768K units are in
operation and passing data by checking that the front-panel LEDs match the
indicator conditions described below. (If the LEDs do not match the
indicator conditions, verify that none of the front-panel test buttons are
pressed in.)
• PWR: On
• TD: Flashing or Off
• RD: Flashing or Off
• RTS: On
• DCD: On
• TEST: Off
• ERR: Off
4.3.2 S
ELF
T
EST
In order to verify that the SHM-768K is operating correctly, use the internal
BERT and analog loopback tests as described in
Sections 5.3
and
5.5
.
4.3.3 O
PERATION
The SHM-768K operates entirely unattended, except for occasional
monitoring of LED indicators as required.
4.3.4 P
OWER
-
OFF
P
ROCEDURE
To turn off the AC power to the SHM-768K, simply remove the AC power
cord from the AC source.
