Cisco Systems IGX 8 Manual De Usuario

-2 IGX 8 Installation Manual, Release 8.2.0

Input AC Power
Connector:

IEC 16 Amp input connector. 6 different power cords are available
to comply with the standards of individual countries. Power cords
are 6 feet (about 2 meters) long. See AC Power Cabling for details.

DC Input Connections

3-wire pluggable terminal block with screw terminal connectors.

Operating Environment:

0

°

 to 50

°

 C (32

°

 to 104

°

 F). Maximum 85% relative humidity

Shock:

Withstands 10 G, 10 ms. at 1/2 sine wave.

Vibration:

Withstands 1/4 G, 20–500 Hz.

Heat Transfer to Room:

IGX 8: 2720 BTUs max.

Voice Channel Interface:

24-channel T1 (D4 format).
24-channel T1-ESF (using CVM8).
30-channel framed CEPT E1.
31-channel framed CEPT E1.

Voice Compression
Available:

32/24/16 Kbps ADPCM.
32 Kbps ADPCM.
Voice Activity Detection compression.

Compression Algorithm:

ITU-T G.721, G.723, G.726.
StrataCom 32 Kbps ADPCM.

PCM Encoding Types:

Accommodates

µ

-Law or A-Law encoding,

End-to-end conversion available.

Channel Gain Control:

–8 dB to +6 dB.

Signalling Modes:

T1: Robbed bit or CCS (ISDN).
E1: Channel Associative Signalling (CAS) or Common Channel
Signalling (CCS).

Signalling Conditioning:

Various make-busy and forced idle routines during circuit alarm can
be specified on a per-channel basis.

Quantizing Distortion
Added:

2.5 Quantizing Distortion Units (QDU)s with 32 Kbps ADPCM
over 1 hop plus 0.7 QDUs with Digital Loss PAD (

µ

-law or A-Law).