peb3456e Infineon Technologies Corporation, peb3456e Datasheet - Page 118

• Manufacturer Part Number: peb3456e
• Description: Channelized T3 Termination, With Ds3 Framer, M13 Multiplexer, T1/e1 Framers And 256-channel Hdlc/ppp Controller
• Manufacturer: Infineon Technologies Corporation

4.10.2.4 Far End Alarm and Control Channel
The far end alarm and control channel is accessible via the signalling controller in BOM
mode.
4.10.2.5 Path Maintenance Data Link Channel
The path maintenance data link channel is accessible via the signalling controller in
HDLC mode.
4.10.2.6 Loopback Control
Detection
Loopback requests are encoded in the messages of the far end alarm and control
channel. The microprocessor has access to the messages as described in
Chapter
Generation
A loopback request can be initiated via the far end alarm and control channel.
4.10.2.7 Alarm Indication Signal, Idle Signal
Detection
Alarm indication signal or Idle signal is declared, when the selected signal format was
received with less than 8/15 bit errors (selectable via bit D3RAP.AIS) for at least one
multiframe. The alarm indication signal can be selected as:
• Unframed all ’1’s
• Framed ’1010’ sequence, starting with a binary ’1’ after each OH-bit. C-bits are set to
The idle signal is a
• Framed ’1100’ sequence, starting with a binary ’11’ after each OH-bit. C-bits are set
Generation
The alarm indication signal or idle signal will be generated according to the selected
signal format. X-bit needs to be set seperately to ‘1’.
Data Sheet
‘0’. X-bit can be checked as ‘1’ or X-bit check can be disabled.
to ‘0’ in M-subframe 3. X-bit can be checked as ‘1’ or X-bit check can be disabled.
4.10.2.4.
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Functional Description
PEB 3456 E
05.2001