peb2256 Infineon Technologies Corporation, peb2256 Datasheet - Page 187

• Manufacturer Part Number: peb2256
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

5.7
The Japanese J1 standard is very similar to the T1 standard, but differs in some details.
To support these differences easily, the following features are provided within the
FALC56:
• CRC6 generation and checking according to ITU-JT G.706
• Remote alarm handling according to ITU-JT G.704
• NTT synchronization requirements in ESF framing mode
• Pulse shaping according to JT G.704
• Receive input thresholds according to ITU-JT G.703
J1 mode is globally selected by setting RC0.SJR = 1 (see
framer initialization see
No special pulse mask setting is required, the described T1-settings also fulfill the J1
requirements.
Data Sheet
(CRC checksum calculation includes FS/DL-bits, see
(remote alarm pattern in DL-channel is "1111111111111111", see
page
146)
J1-Feature Overview
Table 55
on
page
187
199.
Functional Description T1/J1
Chapter 5.2.6.3
page
357). For specific J1
Chapter 5.2.6.2
FALC56 V1.2
on
PEB 2256
page
2002-08-27
146)
on