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15-6 Data Cards
Model No.
Running Head
OHSU Card User Screens and Settings OHSU-4P Card
WAN TS
The TS (time slot) setting identifies the time slots on the WAN link. Unlike other user cards,
the OHSU Card can use many time slots on a single WAN port to create a super-rate circuit
for an individual OHSU port. One to 12 DS0 time slots on a single T1 or E1 link can be
assembled for use by an OHSU port in order to satisfy the speed requirements of the Tele
Protection Device (TPD).
The time slot numbers range from 1 to 24 for T1 links and 1 to 31 for E1 links. However, time
slot 16 is not available on E1 links programmed for CAS or CCS signaling. Figure 15-4 shows
the display when table is selected. Using the space bar to select and deselect the time slot, this
example shows time slots 13 to 24 on WAN 3-1 assigned to port 2. The time slot assignments
have to be contiguous on any card port.
Figure 15-4.Typical OHSU Port Time Slot Assignment Screen
RATE
As defined in IEEE C37.94, the data rate per timeslot is only 64 kbps. This field cannot be
changed.
Tx CLOCK
The OHSU ports behave as IEEE C37.94 MUX ports so the Transmit Clock (Tx CLOCK)
setting can only be int (internal).