4.6.1. LineType (Line Type)

Parameter Number: 0x1601

Description: The LineType parameter defines the physical line type (T-1 or E-1) and the framing format (for example, D4 or ESF). Framing formats include:

• D4 framing - For T-1 lines, in D4 framing, 12 frames of 193 bits each (2,316 bits total) constitute a superframe. This framing format supports AB signaling
• Extended superframe (ESF) - For T-1 lines, in ESF framing, 24 frames of 193 bits each (4,632 bits total) constitute an extended superframe. This framing format supports ABCD signaling.
• CEPT E-1 - For E-1 lines, uses CEPT E-1 framing.
• Cyclic redundancy check 4 (CRC-4) multiframe - For E-1 lines, this provides for CRC error detection. In this framing format, E-1 lines have an extra framing that can coexist with the standard framing and the time slot 16 signaling framing. This extra framing is used to compute and check CRC-4 on incoming lines, to detect remote CRC-4 alarms, and to notify the remote line of CRC-4 errors. When CRC-4 framing is enabled, all CRC-related statistics will be collected and reported, and the RAI_CRC_CFA alarm will be detected and reported.
• Analog - Analog is the framing used for Dialogic Integrated Series boards.

Values:

• 0 = dsx1_D4 - Defines the line type as T-1 using D4 framing format.
• 1 = dsx1_ESF - Defines the line type as T-1 using extended superframe (ESF) framing format.
• 2 = dsx1_E1 - Defines the line type as E-1 using CEPT E-1 framing.
• 3 = dsx1_E1_CRC - Defines the line type as E-1 using CRC-4 multiframe.
• 4 = analog - Defines the line type as analog for use with Dialogic Integrated Series boards.

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