Carrier Access 1750 Table 7-12: Structured DS3 SAM DS0 Loopback Tributary Configuration

7-56 Broadmore 1750 - Release 4.6
Configuration
Structured DS3 SAM
Table 7-12: Structured DS3 SAM DS0 Loopback Tributary Configuration
CBR Service Type Structured No CAS
Structured with CAS
Unstructured
Structured No CAS allows DS 0 (frac tional)
allocation without Channel Associated Signalling
(CAS).
Structured with CAS allows DS0 allocation with
CAS enabled, using robbed-bit signalling.
Unstructured ass igns all the timeslots to on e VP/
VC. Structured No CAS and Structured with
CAS can assign a timeslot or group of timeslots
to a VP/VC.
Unstructured alloc at es al l 24 DS0s to the DS1,
using the entire DS1 bandwidth regardless of
data content.
Frame Type Unframed
Extended Superframe
Superframe
No framing occurs.
Superframe groups 12 DS1 frames together.
Extended Superframe groups 24 DS1 frames
together. The equipment attached must be set to
the same frame type as chosen here.
BERT Off
21e-11 PRBS
21e-15 PRBS
21e-20 PRBS
21e-23 PRBS
BERT test can only be performed when the port
is configured for C-bit parity framing. This
causes the port to generate pseudo-random test
patterns to the service side DS3 physical
connection.
Item Options Description
DS0-0 (0-23) Normal
Remote Normal Mode is no loopback. Remote Loopback sets a loopback to the service
side.
Item Options Description