Glossary
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155
Term
Definition
Static
Interfering noise picked up by a receiver. Static is often caused by
lightning or conflicting man-made electrical products.
Station
See
Radio Station
.
Statistics
A mathematical analysis of data. The Model 640 offers statistics on
many characteristics of the paging system. For example, a statistics
file is available that shows the average and maximum number of
pages transmitted per minute. Statistics can be viewed using either
ZLINK or MCU. Statistics help the system operator manage the
paging terminal more efficiently, identify the need for more resources,
and troubleshoot throughput problems.
STX (Start of text)
An ASCII character used in TNPP packets to indicate the beginning of
the message data. The STX character (
J
) should be included in every
valid TNPP packet.
Subscriber
A paging customer. In the Model 640 databases, a subscriber is a
record that identifies the customer’s name, phone number, pager
capcode, security code, status, call count, and class of service.
Supervision
When a switching network monitors the status of a telephone line for
the duration of a call.
Switch
A telecommunication device that connects multiple line inputs and
outputs. The switch controls the routing and organization of the data
transmission paths.
System Configuration
Files
Several customized files stored in the Model 640 that define the oper-
ating characteristics of the paging terminal. System configuration files
are factory programmed and are usually only modified by qualified
Zetron personnel.
Talkback Paging
A feature in the Model 640 that allows a subscriber with a mobile
radio to be connected with a caller for 2-way communication. When
the paging terminal receives a talkback call, the subscriber is paged to
alert them of a waiting caller. When the subscriber calls into the
paging terminal, they are automatically connected to the calling party.
Telco
A local telephone service provider. The telco leases line types and
services to customers.
TAP (Telocator
Alphanumeric Paging)
Protocol
A standardized alphanumeric paging format that enables paging
encoders to pass pages between remote sites. TAP networking is
similar to TNPP, but the format is less rigid, allowing for a greater
variety of paging types and data.
TNPP (Telocator
Network Paging
Protocol)
The most popular format for wide-area paging networks. TNPP
supports both capcode and ID paging in virtually every format avail-
able. The protocol uses RS-232 data in ASCII character format to send
and receive pages between remote paging encoders.
Summary of Contents for 640 DAPT XTRA
Page 2: ......
Page 6: ...Statements vi 025 9416...
Page 20: ...Introduction 8 025 9416...
Page 26: ...Specifications 14 025 9416...
Page 96: ...Installation 84 025 9416...
Page 126: ...Optional Equipment Installation 114 025 9416...
Page 134: ...Voice Prompts 122 025 9416...
Page 174: ...Parts Lists and Schematics 162 025 9416 Schematic...
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Page 182: ...Parts Lists and Schematics 170 025 9416 Silkscreen...
Page 185: ...Parts Lists and Schematics 025 9416 173 Schematic...
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Page 190: ...Parts Lists and Schematics 178 025 9416 Silkscreen...
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Page 196: ...Parts Lists and Schematics 184 025 9416 Silkscreen...
Page 198: ...Parts Lists and Schematics 186 025 9416 RAM Disk 702 9386B ROM Disk 702 9389B...
Page 199: ...Parts Lists and Schematics 025 9416 187 TNPP Interface 702 9362C 2...
Page 200: ...Parts Lists and Schematics 188 025 9416 Terminal Block Adapter 702 9470B...
Page 201: ...Parts Lists and Schematics 025 9416 189 CONFIGURATION DIAGRAMS Dual Trunk Telco DID 024 0076A...
Page 202: ...Parts Lists and Schematics 190 025 9416 Dual Trunk Telco End to End 024 0077A...
Page 203: ...Parts Lists and Schematics 025 9416 191 Dual Trunk Telco E M 024 0078A...
Page 204: ...Parts Lists and Schematics 192 025 9416 Dual Trunk Telco Ground Start 024 0079A...
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