3Com 3C8S5907 User Guide - Page 61
short haul SH line distance. For T1 lines both long haul and short haul
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Configuring the Ultra-WAN CSU/DSU Interfaces 61 3 Set the LineEncoding as appropriate for your setup using: SETDefault ! -PAth LineENCoding = B8ZS | AMI | HDB3 where = 4A, 4B, 4C, or 4D. The LineENCoding parameter specifies the transmission encoding method for a serial line. The coding method you specify for the serial line must match the attached communication device. AMI or B8ZS should be used for T1 connectors and HDB3 should be used for E1 connectors. NRZ and NRZI are not valid options on Ultra-WAN interfaces. 4 Set the LineDistance as appropriate for your setup using: SETDefault ! -PAth LineDistance = LH1|LH2|LH3|LH4|SH1|SH2| SH3|SH4|SH5|SH7 The LineDistance parameter determines the supported long haul (LH) or short haul (SH) line distance. For T1 lines both long haul and short haul settings are supported. Further granularity is provided in units of dB for long haul, and in units of feet for short haul. For E1 lines, only short haul is supported. Use SH7 for E1 lines. LH1 T1 0 dB LH2 T1 7.5 dB LH3 T1 15 dB LH4 T1 22.5 dB SH1 T1 0-133 feet SH2 T1 133-266 feet SH3 T1 266-399 feet SH4 T1 399-533 feet SH5 T1 533-655 feet SH7 E1 G.703 120 Ohm 5 Enable the connector, using: SETDefault ! -PAth ConnControl = Enabled Connector parameter settings are not applied until the connector is enabled.