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Installation
163
b.
Terminate the other end of the four-pair cable on the
right
side of the T1/PRI 66
-
type terminal
block.
If the service provider [network provider] termination is more than 2000 ft (600 m) from the
MDF, special T1 cable must be used. For cable specifications, see
. For shorter
distances, two lengths of standard two-pair voice-frequency cable—one cable for transmit
and one cable for receive—may be used instead.
3.
Plug one end of a four-pair, non-reversing [straight through], mod-to-mod line cord into each
modular jack [line jack unit] assembly, which was mounted in
. The other end of each line
cord will
later
be plugged into the T1 jack on the corresponding
T1M or T1M-2
module. Make
sure the connectors on the ends of each line cord are properly attached. If any of the wires are
cracked or broken, T1/PRI transmission problems can occur.
Installing Lightning Protection
For additional lightning protection, install gas discharge tubes with silicon avalanche suppressors
to ground (grounding rod or copper, cold water pipe) on each CO, DID, and OPX trunk. This must
be done external to the system. Each gas discharge tube is installed directly between the service
provider [network provider] 66-type block and the system CO/DID/OPX input. This protection should
provide energy absorption and filter low-level surge potentials.
In areas with frequent occurrences of lightning, check that the cable between the service provider
[network provider] 66-type [Krone] blocks and the gas discharge tubes is at least 75 ft (22.5 m) long.
The cable may be coiled as desired.
Connecting T1M or T1M-2 Modules between Network Nodes
T1M or T1M-2 modules are used for connecting system nodes in a network. Each network span
requires two T1M or T1M-2 modules, one for each end of the span. Point to point, clear channel T1
Figure 3: T1/PRI or E1/PRI Trunk Terminations from 66-Type Blocks
66-Type [Krone]
Connecting Block
T1 Cable
8-Conductor
Modular Jack [Line Jack Unit] Assembly
To
To
Module
In Chassis
Four-Pair
Non-Reversing,
Mod-To-Mod
Line Cord
Telco
Содержание MIVOICE OFFICE 250
Страница 1: ...MiVoice Office 250 INSTALLATION AND ADMINISTRATION GUIDE RELEASE 6 3 SP3 ...
Страница 24: ...MiVoice Office 250 Installation and Administration Guide xxiv ...
Страница 29: ...Chapter 1 MiVoice Office 250 New Features ...
Страница 41: ...MiVoice Office 250 New Features 13 Other Enhancements MiVoice Office 250 Release 6 2 supports Exchange 2016 ...
Страница 54: ...MiVoice Office 250 Installation and Administration Guide 26 ...
Страница 55: ...Chapter 2 Document Overview ...
Страница 62: ...MiVoice Office 250 Installation and Administration Guide 34 ...
Страница 63: ...Chapter 3 Product Description ...
Страница 86: ...MiVoice Office 250 Installation and Administration Guide 58 ...
Страница 87: ...Chapter 4 Specifications ...
Страница 157: ...Chapter 5 Installation ...
Страница 251: ...Installation 223 ...
Страница 274: ...MiVoice Office 250 Installation and Administration Guide 246 4 Test for quality ...
Страница 396: ...MiVoice Office 250 Installation and Administration Guide 368 ...
Страница 397: ...Chapter 6 Reference ...
Страница 416: ...MiVoice Office 250 Installation and Administration Guide 388 ...
Страница 417: ...Appendix A Private Networking ...
Страница 445: ...Appendix B Network IP Topology ...
Страница 486: ...MiVoice Office 250 Installation and Administration Guide 458 ...
Страница 487: ...Appendix C Open Source License Agreements ...
Страница 506: ...MiVoice Office 250 Installation and Administration Guide 478 ...
Страница 507: ...Appendix D Phones ...