Multi-Tech Systems MT5600BL User Manual download pdf (Page 103)

C Loopback Tests

6. Enter data from your keyboard. Typing multiple uppercase U characters is a

good way to send an alternating test pattern of binary ones and zeroes. Data re-

ceived by the remote modem enters its analog receiver, is converted to digital

data, is reconverted into analog, and then is transmitted back to your modem.

Your modem passes this test if the data received on your monitor is the same as

the data entered from your keyboard.

7. To exit the test, turn off the modems.

Jumper pins 2 and 3.

VOLUME

EIA RS232C

LEASEDLINEPHONE

POWER

VOLUME

EIA RS232C

LEASEDLINEPHONE

POWER

Modem

under test

Local

modem

Figure C-5. Back-to-back test connections.

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 117 118

Model MT5600BA 1
Model MT5600BL 1
FCC Part 15 3
Industry Canada 3
Chapter 1: Introduction 4
Chapter 2: Quick Start 4
Chapter 6: Callback Security 5
Chapter 8: Solving Problems 5
Contents 7
Introduction 10
Product Description 10
Features 10
1 Introduction 11
Related Manuals 12
Quick Start 13
What You Will Need 14
Safety Warnings 14
RS232 Connection 15
Dialup Connection 15
Adding the Modem to Windows 17
Trio DataComm 19
Windows HyperTerminal 20
Windows Terminal 21
Step 5: Send a Fax 22
References 23
Using the 25
Front Panel 25
Modem Configuration 26
LED Indicators 26
Liquid Crystal Display (LCD) 27
Menu Overview 28
3 Using the Front Panel 29
Status Trunk 29
Basic Options Trunk 30
Advanced Options Trunk 31
Diagnostic Options Trunk 32
Caller ID Options Trunk 33
Menu Options 34
Basic Options 35
Advanced Options 36
Remote Configuration Options 37
Diagnostic Options 38
Phone Number Memory Options 38
Caller ID Options 38
AT Commands 39
S-Registers & 39
Result Codes 39
S-Registers 57
Configuration 65
Basic Procedure 66
5 Remote Configuration 67
Callback 69
Security 69
AT Command Method 70
Front Panel Method 71
At Command Method 71
Calling Procedure 73
Callback Security Commands 73
Callback Assignments 75
Leased Line 77
Operation 77
Two-Wire Setup 78
Four-Wire Setup 79
7 Leased Line Operation 81
Problems 83
None of the Indicators Light 84
8 Solving Problems 85
Data Is Being Lost 89
Appendixes 91
FCC Part 68 Telecom 92
Fax Branding Statement 93
Canadian Limitations Notice 94
Commission Decision CTR21 94
A Regulatory Compliance 95
B Technical Specifications 97
Appendix C: Loopback Tests 99
Test procedure 100
Back-to-Back Test 102
C Loopback Tests 103
Technical Support 104
To Download a File 105
About the Internet 106
Ordering Modem Accessories 107
Upgrade Overview 108
Multi-Tech Web Site 109
Multi-Tech BBS 109
E Upgrading the Modem 111
Appendix F: Cable Pinouts 112
Leased Line Pinouts 113
MultiModemII User Guide 114

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