The CM1481 Non-Predictive Selcall Module
Table of Contents
Introduction to The CM1481
Summary of Standard Functions and Features
Installation Instructions
Power Requirements
Handling Precautions
Alert Audio Levels
3
3
4
4
4
4
Radio Interface
5
Circuit Diagram
6
PCB Layout
7
Configuration
8
Configuration Menu
Error and Status Messages
Receive Call Operation
Transmit Call Operation
LED Call Memory
LED Drive
Automatic REPEAT-Tone
Timed Mute Reset
Audio Alerts
PTT Lockout
Single or Dual Button Operation
Automatic Number Identification (ANI)
Tx Timeout and Warning
NOTONE Timer
10
11
12
12
12
12
13
13
13
13
14
14
15
15
15
15
16
16
16
17
17
17
18
19
19
20
21
21
22
22
22
23
24
Transponding
Input/Output Polarities
Lead-In Tone
Quiet/Open Modes
Lead-In Delay
Over-Air Functions
Power-Up 'Quiet'/'Open'
‘Muted’ Call Initiation
Security Checks
Example Over-Air Transactions
Pseudo-Random Number Information
Over-Air Tone Information
Hexadecimal Sequential Code
Operational Rules
Tone Allocations
International GROUP CALL
Non-International GROUP CALL
Specification
Ordering Information
2
CMLMICRO [ CML MICROCIRCUITS ]
