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Model 3096RC T-DAC Getting Started Guide
3 • Configuring the T-DAC for operation
Figure 29. DS0 Mapping Configuration page
To define each DS0 Mapping you will create a static connection. “A” and “B” designate the two ends of the
static connection. For each static connection you will define the following parameters:
Device Type.
Specifies the physical interface type for the connection. You may select either t1-
e1(1) for a T1/E1 WAN line or gsdsl(4)for a G.SHDSL modem.
Device Number:
Defines which WAN or G.SHDSL port number on the 3096RC you are map-
ping. For example, to map a connection for G.SHDSL port 3 (i.e. G.SHDSL
modem #3) you would select port3(3)
Device Slots.
Defines which DS0 channels will be mapped. Each DS0 channel is 64 kbps.
Each G.SHDSL port has 72 DS0 channels for data. Each T1 WAN port has 24
DS0 channels. Each E1 WAN port has 31 DS0 channels. When defining time
slots you must select the same number of Device Slots on the “A” and “B” sides
of the connection. The slots are defined by entering a text string that represents
the slots. For the G.SHDSL ports, the slots that are available are 1 - 32. For a
WAN port configured as a T1, the available slots are numbered from 1 - 24. For
a WAN port configured as an E1, the available slots are 1 - 31.
Note
A special case occurs when a CPE such as the 3086 delivers user data
at 64 kbps or 128 kbps. At this speed, the DSL line rate is 192kbps
(3 DS0s). If for instance, the 3086 transports 64 kbps of Ethernet
and 64 kbps of serial data, then the remaining 64 kbps time slot car-
ries no data. The lower timeslot carries Ethernet data (TS1), while
serial data is transported in TS2. TS3 carries no user data.
The following notation should be used for assigning timeslots.
– dash: (-), e.g., 1 – 4
– comma: (,), e.g., 1,4,9
– combo: 1-2,3,6-7
Examples for configuring static connections.
Three examples are provided:
•
Example 1: Connecting a G.SHDSL modem port to an E1 WAN port.