Carrier Access Network Device Axxius 800 - Manual (Page 432)

13-2 Axxius 800 - Release 2.2
Quad DS1 ADPCM Card
Overview
Overview
The Quad DS1 ADPCM Service card is a component of the Axxius 800 Access
Integration Platform. With the ADPCM Service card, the Axxius 800 provides an
intelligent, compact device that can compress and groom voice traffic, which increases
bandwidth utilization and reduces costs. Using Adaptive Differential Pulse Code
Modulation (ADPCM), the ADPCM Service card compresses selected voice timeslots
from one of the T1 ports. Compression maps are CLI configurable for the ADPCM
port.
The ADPCM Service card is capable of packing two analog voice channels into a single
DS0 and functions simultaneously as a digital cross-connect switch for grooming,
bypassing or switching any combination of 64 kbps timeslots. It supports four T1
circuits and includes integral T1 CSU circuitry. V.35/RS-530 high-speed data ports, for
integral DSU operation, can be added to the platform with the Dual V.35 Service Card
and gives users the ability to drop and insert local data into available timeslots.
The ADPCM Service card utilizes industry-standard ADPCM voice compression
techniques to increase the voice capacity of T1 links. It offers flexible timeslot
assignments for mapping and configuration of compressed and non-compressed clear
channels to groom voice and data to meet network traffic requirements between remote
cell sites and the Mobile Switching Center (MSC). Data and digital traffic (i.e., GSM,
CDMA, and TDMA) can ride along with compressed analog voice traffic over standard
T1 circuits for supporting mixed analog and digital cellular sites.
The Axxius 800 DS1 or DS3 Controller Cards manage and control the ADPCM Service
card. The ADPCM Card is a highly integrated single-module solution that can be fully
integrated with additional service cards. Hardware investments are protected as user
networking needs change.
NOTE: There are 4 ports on the DS1 ADPCM Service card, only port 1
supports the ADPCM function.