Transport Bandwidth - Alcatel MainStreet 2902 Manual

The F and S bits each occupy one element (800 b/s of bandwidth each). Any element
that does not contain an F, S or D represents unused bandwidth.
2902 MainStreet
F0
F1
F2
F3
F4
F5
F6
F7
F8
F9
D - DATA
CONFIG CIRCUIT 9-A FUNCTION RATE_ADAPT
1-METHOD
6-DATA_POSN
In Figure 22-1, the transport bandwidth is 64 kb/s, the interface speed is 9600 b/s and
the transport position is B7. The right side of the display shows all the current circuit
parameters, including the transport bandwidth (beside the Rate adaption heading).
Procedure 22-1 To configure a data circuit for HCM rate adaption
CONFIG — CIRCUIT — <pp-c> ↵ — FUNCTION — RATE_ADAPT — METHOD — HCM
where pp is 1 or 9, and c is 1 or 2, or A or B
22.3

Transport bandwidth

The transport bandwidth sets the number of D elements available to the data device.
Unlike transparent rate adaption, setting the transport bandwidth does not set the
interface speed. The interface speed is set separately (see section 22.6).
2902 MainStreet Technical Practices
May 2002 90-2906-01
Some combinations of transport bandwidth, transport
Note —
position and data position parameters are incompatible. The first D bit
must be in one of the columns defined by the transport position and
the transport bandwidth.
82211-ab-cd
DATA CCT: M01-1 NAME:
B7 B6 B5 B4 B3 B2
F S D D D D
D D D D D D
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
F - FRAMING BIT
2-TRANSP_BW
7-
Figure 22-1 HCM frame
Alarms: No Date
B1 B0 Configured as
D D Rate Adaption
- - Transport Posn
- - Interface Speed : 9600 bps
- - Data Position
- - Signalling
- - Multi-Drop
- - Clock
- -
- -
- -
S - SIGNALLING BIT
3-TRANSP_POS 4-SIG_OFF
8-CANCEL 9-QUIT
22 — HCM rate adaption
2:57R
: SYNC-DCE-FULL DUPLEX
: HCM - 64 kbps
: B7
: F0-B5
: ON
: DISABLED
: SLAVE-LOCKED
5-I/F_SPEED
0-
22-3