Specifications

Wide Area Module Configuration
QuickSET Configuration Guide 13
DI Functionality
Enable — The NI Port is connected to the T1 WAN connection. Any timeslot set to zero will
pass (that timeslot) from the NI Port to the DI Port (see Figure 11 below). The clock must either
be local or come into the WPIM-DI through the NI Port.
Data From DI — The DI Port is connected to the T1 WAN connection. Any timeslot set to zero
will pass (that timeslot) from the DI Port to the NI Port. The clock must come into the WPIM-DI
through the NI Port.
Disable — The Drop and Insert functionality is turned off. The NI Port is connected to the T1
WAN interface and no timeslots are passed to the DI Port regardless of whether they are set to zero
or not.
Figure 11 DI Telco Timing
Telco Timing — The following configuration, shown above in Figure 11, is a typical setup. The
system clock source is supplied by the Telco cloud between the two sites. The DI functionality
option is set to Enable for both WPIM-DIs. Transmit Clock Source must be set to Loop Timing at
both sites for this configuration.
Tail Circuit Timing — The configuration shown on the following page in Figure 12 describes
“Tail Circuit Timing”.
Telco
Cloud
Clock:
Local
Clock:
Loop
Clock:
Loop
Clock:
Loop
Clock:
Loop
PBX
PBX
DINI
WPIM-DI
NI
DI
WPIM-DI
Voice
Voice
Voice/Data
Voice/Data
Site #1
Site #2