Ctp2000-Compression Module; Ctp2000-Im-4Wem Module - Juniper CTP1000 Series Hardware Manual

CTP2000-Compression Module

The CTP2000-Compression interface module enables serial data and voice bundles
to be compressed and passed through a CTP2000 system. (See Figure 20.)
Voice bundles originating from the CTP2000-IM-8P-T1E1 module or from the analog
CTP2000-IM-4WE&M module use the CTP2000-Compression module to compress
the voice bundle. Voice bundles ranging from 1–24 channels on a T1, 1–30
channels on an E1, or 1–8 4WE&M channels can be bundled and connected
through the compression module to compress the voice bundle and build the IP
packet.
Figure 20: CTP2000-Compression Interface Module
The compression card supports these compression algorithms:
The module supports Mu-Law and A-Law companding, echo cancellation, silence
suppression, fax/modem detection, and tone relay. You can configure the
compression options when configuring the voice bundle.

CTP2000-IM-4WEM Module

The CTP2000-IM-4WEM interface module has eight 4-wire E&M ports and provides
support for voice applications. It is used with voice compression (VCOMP) bundles
in CTP2000-series models and can be used only with a CTP2000-Compression
module.
Four-wire audio interfaces with E and M signaling interfaces (4W-E&M) are
commonly used as trunks between a central office (CO) and a private branch
exchange (PBX). E&M is a type of supervisory line signaling that uses separate
leads, called the "E" (ear) lead and "M" (mouth) lead and are traditionally used in
the telecommunications industry. In 4-wire E&M, two wires are used for receive and
two wires are used for transmit, incorporating simplex control and differential
payload in each channel. Type I, II, and V signaling is supported.
The 4W-E&M interface module consists of a front card and a rear transition module
(RTM). Port interfaces are located on connectors A and B of the RTM. (See Figure 21
and Figure 22.) The RJ-45 connectors are not used.
MELP (2.4k)
G.729AB (8k)
G.728 (16k)
G.726 (16k)
G.726 (32k)
PMC (64k)
Chapter 1: CTP System Overview
CTP2000-Series Modules
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