Prt - NEC UNIVERGE SV9300 Networking Manual

PRT

The Primary Rate Interface Trunk (PRT) provides the Q-SIG Primary Rate Interface (1.5 Mbps PCM-
23B+D/2 Mbps PCM-30B+D) and a built-in D Channel Handler (DCH). The PRT has the following func-
tions.
For 24PRT:
• Unipolar/Bipolar Conversion (AMI/B8ZS Format)
• Alarm Detection/Insertion
• Loopback Test (Local Loopback)
• Cyclic Redundancy Checking (based on ITU-T Rec. G704)
For 30PRT:
• Unipolar/Bipolar Conversion (HDB3 Format)
• Alarm Detection/Insertion
• Loopback Test (Local Loopback)
• Cyclic Redundancy Checking (based on ITU-T Rec. G704)
For connection of a 24PRT and transmission line, twisted-pair cable can be used.
For connection of a 30PRT and transmission line, either coaxial cable or twisted pair cable can be
used.
2-6
Chapter 2 Q-SIG FEATURES
SYSTEM CONFIGURATION
NWA-088654-001 Rev.1.0
94ch2001.fm