Enterasys Networks X-PeditionTM manual T3 Mode, E3 Mode

Features

•Support for local and remote loopback

•Support for an IP interface as a loopback (refer to the CLI Reference Guide for an example)

•Timing - line and internal

•Framing - T1: SF, ESF; E1: CRC4, NO-CRC4

•Line encoding - T1: AMI, B8ZS; E1: AMI, HDB3

•Data inversion

•Loopback Tests - local, network line, network payload, inband FDL

•Alarm detection - all levels of alarm/event detection and signaling

•T1 Drop and Insert (D&I NIM) with One to One voice DS0 bypassing

The following features are offered on the T3/E3 interfaces:

T3 Mode

The following features are offered on T3 interfaces:

•Framing - M13 and C-bit parity

•Line build out - short (0 to 250 feet) and long (250 to 450 feet)

•Line interface - 75-ohm BNC coax female connectors

•Clock - line (slaved to network receive clock) and internal (private clock source)

•Line rate - 44.736 Mbps (gross rate including overhead and payload)

•Full Rate - 44.2 Mbps (payload rate only)

•Sub-rate - approximately 3 Mbps increments up to 44.2 Mbps

•Sub-rate compatible DSUs supported:

–Quick Eagle (formerly Digital Link) DL3100 T3 or Cisco-300-44210 Kbps

–Larscom Access T45-3100-44210 Kbps

–ADC Kentrox T3/E3 IDSU-1500-35000, 44210 Kbps

–Adtran T3SU 300-75-44210Kbps

–Verilink HDM 2182-1500-44210 Kbps

•Scrambling - same as for sub-rates, DSU vendor dependant

•Diagnostics - ANSI T1.107 compatible loop backs (initialized from the network)

•Performance monitoring local network port statistics - Current 15 -minute, 24-hour (96 *15- minute intervals) and total for 24 hours

E3 Mode

The following features are offered on E3 interfaces:

•Framing - G751 or bypass

•Line interface - 75-ohm BNC coax female connectors

•Clock - line (slaved to network receive clock) and internal (private clock source)

4-2 Configuring T1/E1 & T3/E3 Interfaces