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G.SHDSL Port Configuration window 109
Models 2616RC, 3096RC & 3196RC Admin Reference Guide 9 • G.SHDSL (Model 3096RC)
• remSerLoop(8)
• remEthLoop(11)
Otherwise, display-only with a value of off(9).
Until the G.SHDSL link is established, the Test Mode value off(9) will appear in display-only form. Once the
link is established and port state changes to dataMode(1), the Test Mode drop-down menu will appear.
• localLoop(6)—The T-DAC’s G.SHDSL port will operate in local loopback mode. Data transmitted
through the T-DAC to the G.SHDSL port is looped back to the transmitting port as shown in figure 46.
Figure 46. Local loopback
For example, suppose G.SHDSL port 1 is mapped to T1/E1 port 1, and the T-DAC operator has defined
Test Mode for G.SHDSL port 1 as localLoop(6). As T1/E1 port 1 receives the T-DAC will send the data to
G.SHDSL port 1 as normal. But instead of transmitting the data on G.SHDSL port 1, the T-DAC will
loop the data back to T1/E1 port 1 for transmission on the T1/E1 link.
• remSerLoop(8)—For a Patton CPE G.SHDSL modem that provides a serial port (such as the model
3086), and that is remotely connected to this G.SHDSL port, remSerLoop(8) changes the operating mode
of the serial port. The T-DAC will cause the serial port on the remote CPE to operate in loopback mode as
show in figure 47.
Figure 47. Remote serial loopback
When the T-DAC transmits data from the G.SHDSL port over the G.SHDSL link to the remote CPE’s
serial port, the serial port will loop the data back to the CPE’s G.SHDSL port for transmission back to the
T-DAC.
Note
remSerLoop(8) has no effect on the Remote CPE’s Ethernet port.
Any data destined for the Ethernet port of a remote CPE will not be
looped back.
3096RC
T1/E1 port 1
DSL port 1
Ethernet port
Serial port
3086
G.SHDSL port G.SHDSL port
DSL data stream
3096RC