MT8977 Mitel Networks Corporation, MT8977 Datasheet - Page 25

• Manufacturer Part Number: MT8977
• Description: ISO-CMOS ST-BUS FAMILY T1/ESF Framer Circuit
• Manufacturer: Mitel Networks Corporation

Preliminary Information
NB:
Numbering
differs from
Fig 25.
NB:
Numbering
differs from
Fig 24.
CHANNEL
CHANNEL
31
24
(1/1.544) s
S Bit
CHANNEL
0
CHANNEL
Figure 24 - Format of 2048 kbit/s ST-BUS Streams
1
• • • • • • • •
BIT 7
BIT 1
Figure 25 - DS1 Link Frame Format
• • • • • •
BIT 6
BIT 2
BIT 5
BIT 3
125 s
125 s
BIT 4
BIT 4
(8/1.544) s
(8/2.048) s
BIT 3
BIT 5
CHANNEL
CHANNEL
30
23
BIT 2
BIT 6
CHANNEL
CHANNEL
BIT 1
BIT 7
ISO-CMOS
24
31
BIT 0
BIT 8
CHANNEL
S Bit
0
CHANNEL
MT8977
1
4-123