4RF Aprisa XE User Manual - page 105
Configuring the Traffic Interfaces | 103
Aprisa XE User Manual
4. Set the QJET T1 Tx Waveform Shaper (T1 only).
The Tx Waveform Shaper applies 1/√f pre-emphasis to the transmit waveform to ensure the waveform
meets the G.703 pulse mask at the interconnect point. Waveform shaping assumes the use of 22 gauge
(0.32 mm
2
) twisted-pair cable. The default is
0 ~ 133 f t .
Cable Length Range
0 ~ 133 f t
Def ault
133 ~ 266 f t
266 ~ 399 f t
399 ~ 533 f t
533 ~ 655 f t
5. Loopback controls the port loopbacks (see ‘Interface Loopbacks’ on page 242).
Setting
Function
Off
No port loopback
Line Facing
Port traffic from the customer is transmitted over the RF
link but is also looped back to the customer
Radio Facing
Traffic received from the RF link is passed to the customer
port but is also looped back to be transmitted over the RF
link
Note: The QJET E1 / T1 port green LED flashes when the loopback is active.
6. AIS Hysteresis sets the number of seconds after a Modem LOS that AIS is sent.
7. Click Apply to apply changes or Reset to restore the previous configuration.