Multi-Tech Systems MultiVOIP Model Mvp400/800 Standalone Voice/ip Gateway User Guide

71 Appendix B - Cabling Diagrams
Appendix B - Cabling Diagrams
Command Port Cable
13     12     11     10      9     8       7       6      5       4        3      2     1
  25    24      23    22      21   20     19    18     17      16     15    14









	












	
LAN Cable


Pin Circuit Signal Name
1 TD+ Data Transmit Positive
2 TD- Data Transmit Negative
3 RD+ Data Receive Positive
6 RD- Data Receive Negative
Voice/Fax Channel Connectors...

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Appendix C - Regulatory Information
Class A Statement
FCC Part 15
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the...

73 Appendix C - Regulatory Information
3. An FCC-compliant telephone cord with modular plug is provided with this equipment. This
equipment is designed to be connected to the phone network or premises wiring using a compatible
modular jack which is Part 68 compliant. See installation instructions for details.
4. If this equipment causes harm to the phone network, the phone company will notify you in advance
that temporary discontinuance of service may be required. But if advance notice is not practical,...

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appropriate electric inspection authority, or electrician, as appropriate.
EMC, Safety and Terminal Directive Compliance
The CE mark is affixed to this product to confirm compliance with the following European Community
Directives:
Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States
relating to electromagnetic compatibility.
and
Council Directive 73/23/EEC of 19 February 1973 on the harmonization of the laws of Member States
relating to...

Glossary 

76 MultiVOIP User Guide
A
Access:   The T1 line element made up of two pairs of wire that the telephone company brings to the customer premises.  The Access
portion ends with a connection at the local telco (LEC or RBOC).
Accunet Spectrum of Digital Services (ASDS):   The AT&T 56K bps leased (private) line service. Similar to services of MCI and Sprint.
ASDS is available in nx56/64K bps, where n=1, 2, 4, 6, 8, 12.
ACK (ACKnowledgement code) (pronounced ack):  A communications code sent from a receiving...

77 Glossary
Bell Operating Companies (BOC): The family of corporations created during the divestiture of AT&T.  BOCs are independent companies
which service a specific region of the US.  Also called Regional Bell Operating Companies (RBOCs).
Bell Pub 41450:  The Bell publication defining requirements for data format conversion, line conditioning, and termination for direct DDS
connection.
Bell Pub 62310:  The Bell publication defining requirements for data format conversion, line conditioning, and...

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Circuit switching:  The temporary connection of two or more communications channels using a fixed, non-shareable path through the
network.  Users have full use of the circuit until the connection is terminated.
Clear Channel:   A transmission path where the full bandwidth is used (i.e., no bandwidth needed for signaling, carrier framing or control
bits).  A 64K bps digital circuit usually has 8K bps used for signaling.  ISDN has two 64K bps circuits, and a 16K bps packet service...

79 Glossary
Digital Loopback:  A technique used for testing the circuitry of a communications device.  Can be initiated locally, or remotely (via a
telecommunications device).  The tested device decodes and encodes a  received test message, then echoes the message back.  The results
are compared with the original message to determine if corruption occurred en route.
Digital PBX:  A Private Branch Exchange that operates internally on digital signals. See also Exchange.
Digital Service, level 0  (DS0):...

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Extended Super Frame (ESF):  One of two popular formats for framing bits on a T1 line.  ESF framing has a 24-frame super-frame, where
robbed bit signaling is inserted in the LSB (bit 8 of the DS-0 byte) of frames 6, 12, 18 and 24.  ESF has more T1 error measurement capabili-
ties than D4 framing.  ESF and B8ZS are typically both offered to provide clear channel service.
F
Failed Seconds:  A test parameter where  the circuit is unavailable for one full second.
Failed Signal:  A T1...