Gai-tronics IPE2500A, IPE2500A-MLS Paging Encoder / Desktop Co Manual do Utilizador descarregar pdf (Página 87)

81 03/12

Definitions and Acronyms

Term Definition

CSQ

Carrier squelch

CTCSS

A means of grouping users of a common radio channel. Subaudible tones are transmitted

with audio; a particular radio’s speaker (or the speakers of a group of radios) will unmute

to broadcast a transmission only if the associated subaudible tone identifies it as

belonging to the radio’s user group.

CDCSS

A system analogous to CTCSS but using low speed digital signaling instead of subaudible

tones.

HLGT

High level guard tone

LLGT

Low level guard tone

PTT

Push-to-talk

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IPE2500A and IPE2500A-MLS 1
User and Installation Manual 1
03/12 Pub. 43004-008H ii 2
Table of Contents 3
03/12 Pub. 43004-008H vi 6
Foreword 7
Description 9
Feature Benefit 10
Desk Set Button Panel 11
Handset 12
Connectors 12
Mic Input Pin Function 13
Line Connector 13
Pin Function 13
Audio Accessory/RS-232 Port 13
Control Tones 14
Tone Levels 14
Accessories 15
Field Replacement Items 15
Programming 15
Performance Specifications 16
Operation 17
Receiving Calls 18
Initiating Calls 18
Handset Transmit 19
Front Panel Buttons 20
Parallel Status Operation 22
Frequency Display 22
Tone Supervisor Control 24
Secure Operation 24
DTMF Decode 25
H.E.A.R. System Operation 25
Optional DC Control Kit 26
Optional Relay Control Kit 26
E&M with Tone Control 27
Line Selection 28
Alert Tones 29
+ 5 and CTL + 6 30
2-Tone Paging Example 32
Gen Enc 33
Modified 33
03/12 28 34
Plectron Paging 35
03/12 30 36
Direct DTMF Dialing 38
RS-232 Input or PC Control 40
Frequency Changing 41
Byte Value Description 41
Custom Tones 41
Installation 43
Power Connection 44
Line Connection 45
MLS Line-Level Normalization 47
DTMF/H.E.A.R. Functions 49
OTE: The display shows the 50
Main Diagnostics Selection 51
Programming Menu 51
Line Output Adjustment Table 54
Theory of Operation 61
Transmit Audio 62
Microphone Audio 62
Guard Tone Detection 62
Multi-Line Select Module 64
Reset Circuit 64
General Description 65
Connection 65
Reading the Unit 65
CARD Suite Programming 66
Troubleshooting 67
Fuse Replacement 68
Circuit Boards 69
Multi-Line Select Board 72
(IPE2500A-MLS) 72
Schematics 73
Schematic - Sheet 7 80
Definitions and Acronyms 87

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