Pushbutton and Switch Indications
Four push-button switches are available on the front panel. The switches are in “ON” mode
when pressed and in OFF mode when released. They are respectively from left to right.
ANA
: This switch initiates a internal loopback on the optical interface so that the E1/FE1 data being
received from Tx Pins of E1/FE1 interface by the system is transmitted back to Rx Pins of the of
the same E1/FE1 Interface.
This test may be used to verify the integrity of the E1/FE1 Data Interface connections.
DIG
:
This switch initiates a internal loopback on the E1/FE1
I
nterface so that the data being
received
from the Tx Pins of optical fiber is sent back on the Rx Pins of optical fiber
through the E1/FE1
Interface.
This test may be used to verify the integrity of the optical link.
E1/FE1
E1/FE1
Optical Interface
Optical Interface
VCL- E1 Fiber
Optic Modem
VCL- E1 Fiber
Optic Modem
REM
:
This switch initiates a loopback at the remote side. It may be used to verify the complete
data
link integrity between the local and the remote E1/FE1 Interface.
Fiber
E1/FE1
E1/FE1
VCL- E1 Fiber
Optic Modem
VCL- E1 Fiber
Optic Modem
Local End
Remote End
PATT
:
This switch initiates a data link integrity test by generating a pseudo-random pattern.
Important:
1.
All switches must be in OFF condition during normal operations. Whenever a test switch
is used to initiate a test, the normal communications shall be disrupted.
2.
When PATT switch is used to do a data link integrity test please ensure that the far end in
a loopback mode to complete the test circuit.
8
Pushbutton and Switch Indications
Orion Telecom Networks Inc. - 2007-10
VCL-E1 (G.703) Fiber Optic Modem