Prt - Philips SOPHO 2000 IPS User Manual

PRT

The Primary Rate Interface Trunk (PRT) provides the ISDN 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
• Digital PAD on Voice Signal Transmission
• Loopback Test (Local/Remote Loopback)
• Cyclic Redundancy Checking (based on ITU-T Rec. G704)
For 30PRT:
• Unipolar/Bipolar Conversion (HDB3 Format)
• Alarm Detection/Insertion
• Digital PAD on Voice Signal Transmission
• Loopback Test (Local/Remote Loopback)
• Cyclic Redundancy Checking (based on ITU-T Rec. G704)
For connections of 24PRT and transmission line, twisted-pair cable can be used. For connection
of 30PRT and transmission line, either coaxial cable or twisted pair cable can be used.
NOTE:
ISDN requires B8ZS Line coding with Extended superframing (ESF) format.
CHAPTER 1 GENERAL INFORMATION
– 16 –
SYSTEM OUTLINE
NWA-008852-001 Rev.5.0
98ch1001.fm