Cisco PA-VXA Series Installation And Configuration Manual page 18

Features
Signaling supported for H.323 environments:
• H.323 V.2 support
• E1 CAS, T1 CAS (robbed-bit signaling)
• CCS signaling—E1 and T1 PRI (user and network side), Q.SIG
R2 signaling
•
Port configured as T1 features:
• DS1 100-ohm interfaces with RJ-45 connectors
• D4 super frame (SF) and extended super frame (ESF) framing
• Alternate mark inversion (AMI) or binary 8-zero substitution (B8ZS) line encoding
• Full Facility Data Link (FDL) support and FDL performance monitoring per ANSI T1.403 or AT&T
TR 54016
• Selectable DSX-1 cable length in increments from 0 to 655 feet (0 to 79.64 meters)
Selectable DS1 CSU line build-out—0, –7.5, –15, or –22.5 dB
•
Selectable DS1 CSU receiver gain—26 or 36 dB
•
DS1 line protection per UL1459/1950, FCC part 68
•
Full support for DSX-1 Management Information Base (MIB), RFC 1406, including alarm detection
•
and reporting
DSX-1 MIB remote access supported
•
Port configured as E1 features:
• E1 120-ohm (G.703) with RJ-48C connectors
• Software-configurable E1 national bits
Binary 3-zero substitution (B3ZS) encoding
•
• Full support for E1 MIB, RFC 1406, including alarm detection and reporting
Full bit-error-rate testing capabilities on each E1/T1:
Programmable pseudorandom pattern up to 24 bits in length, including 211-1, 215-1, 220-1,
•
220-1 QRSS, 233-1, all zeros, all ones, and alternating ones and zeros
32-bit-error count registers
•
Supported loopbacks:
• Line loopback—T1/E1 stream is looped back at the line interface unit (LIU) toward the network.
• Payload loopback—T1/E1 data stream is looped back at the framer toward the network.
• Diagnostic local loopback—T1/E1 data stream is looped back at the framer toward the system.
Remote loopback—T1 stream is looped back at the LIU toward the network upon request from the
•
far-end through the FDL command.
T1/E1 Digital Voice Port Adapter Installation and Configruation
1-4
Chapter 1 Overview
OL-3592-02