ds265188-port-t1-e1-j1-transc Maxim Integrated Products, Inc., ds265188-port-t1-e1-j1-transc Datasheet - Page 16
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ds265188-port-t1-e1-j1-transc
Manufacturer Part Number
ds265188-port-t1-e1-j1-transc
Description
Ds26518 8-port T1/e1/j1 Transceiver
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS265188-PORT-T1-E1-J1-TRANSC.pdf
(313 pages)
- Current page: 16 of 313
- Download datasheet (3Mb)
5.
This data sheet assumes a particular nomenclature of the T1 and E1 operating environment. In each 125μs T1
frame, there are 24 8-bit channels plus a framing bit. It is assumed that the framing bit is sent first followed by
channel 1. For T1 and E1 each channel is made up of 8 bits, which are numbered 1 to 8. Bit 1, the MSB, is
transmitted first. Bit 8, the LSB, is transmitted last.
Locked refers to two clock signals that are phase- or frequency-locked or derived from a common clock (i.e., a
1.544MHz clock can be locked to a 2.048MHz clock if they share the same 8kHz component).
Table 5-1. Time Slot Numbering Schemes
TS
Channel
Phone
Channel
ACRONYMS AND GLOSSARY
0 1
1 2
1
2
3
2
3
4
3
4 5 6
5 6 7
4 5 6
7
8
7
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
8 9 10 11 12 13 14 15
16 of 313
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
DS26518 8-Port T1/E1/J1 Transceiver
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