Zhone Technologies Network Device manual Isdn Primary Rate Interface PRI Server

Zhone Technologies, Inc.		IMACS Product Book, Version 4
Table 21—ADPCM Server Card Specifications
	Input Voice Channels	Can originate from any 2-wire or 4-wire voice card or from a DSO on a WAN
		(El/T1 or HDSL) interface. ∝ -Law & A-Law 64Kbps PCM compatible on a per
		channel basis
	Input Sub-rate Data	SRU data traffic at 19.2Kbps or less can be carried on a 24Kbps sub-channel
	Input BRI traffic	B channel voice traffic can be compressed at any of the configurable rates
	Modem Data Support	Transcoder rate: 24, 32 or 40 Kbps; Modem Data: none, up to 4.8Kbps, V.32
		to 9.6Kbps, up to 12Kbps and V.32 bis to 14.4Kbps
	Fax Support	Transcoder rate for fax: 24, 32 or 40 Kbps; none, Group II and Group III fax
	Voice Quality	As measured by Mean Opinion Score (MOS) analysis, a subjective
		evaluation with a range of 0 (poor quality) to 5 (good quality). Toll
		quality voice is accorded a MOS of 4.0 24Kbps transcoder rate MOS is
		3.6-3.8; 32Kbps transcoder rate MOS is 4.0-4.3 and 40Kbps transcoder
		rate MOS is 4.0-4.3
	Echo Cancellation	Non provided—typically not required
	Signaling	Transmitted in-band utilizing CAS transitional signaling, as per ANSI
		T1.302—1986 for 32Kbps and modified for use with 24Kbps and
		40Kbps. Note Robbed Bit Signaling Alarm Transmission, as specified
		in ANSI T1.302a-1989 is not supported
	Maximum Card Count	3 (with 3.x CPU-2 active with 1 redundant or 3 active, 5.x CPU 3active)
	Transcoder Operation	Compliant to G.761 Alarm Indication and Fault Handling
	Standards Compliance	ANSI T1.3021989, ANSI T1.302a 1992, ANSI T1.3031989, CE EN
		500- 81-1, CE EN 500-82-1, CE EN 60950/A2, ITU-T G.721, ITU-T
		G.723, ITU-T G.726 12/90

2. ISDN Primary Rate Interface (PRI) Server

The PRI Server Card provides flexible access and routing of PRI-based ISDN services. The ISDN PRI Server can be used for enabling applications such as Video Conferencing, Video Broadcast, ISDN Grooming, and Fractional PRI provisioning. The PRI Server card supports B channel bandwidth of 56K, 64K, 384K, 1536K and Multi-Rate speeds where available. Multi-Rate speeds allow the PRI server card to select calls in increments of 64Kbps. In areas where Multi-Rate is not supported by the local ISDN switch, an Inverse Mux (IMUX) Server Card should be used to aggregate individual 64Kbps calls.

The PRI card can be utilized with the 8213 Switched HSU Card for RS-366 and V.25bis bandwidth on demand dialing. Additionally, regular HSU cards can be used for DTR dialing. The PRI server card supports both the Network and User side protocols associated with ISDN PRI services and therefore the IMACS can be used to both originate and terminate ISDN calls.

The following components make up the BRI/PRI solution:

•One 881160 Multi-Server Card

•One 65100 BRI/PRI Service Translation Software Package

•Optional WAN Interfaces with associated Line Interface Modules

•Optional ISDN ‘U’ and “S/T” Interfaces

March 2001 Page 70