Table of Contents
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Chapter 4
Security Considerations and Procedures (cont)
Checking Crypto Status .......................... 4-9
Adding CIKs .................................. 4· 11
Zeroizing CIKs ................................ 4-13
Zeroizing STU 111/SECTEL. ...................... 4-15
Chapter 5
Voice Communication
Placing Clear Mode Calls ......................... 5-1
Receiving Clear Mode Calls ....................... 5·2
Converting Clear Mode Calls To Secure Mode ........ 5-2
Receiving Auto Secure Calls ...................... 5-6
Reading/Clearing a CIM .......................... 5-8
Chapter 6
Data Communication (Secure Mode Only)
Overview ..................................... 6-1
Setting Data Communication Protocols ............. 6-1
Sending/Receiving A Data File .................... 6-4
Off-Hook Data Protocol Changes .................. 6-6
Chapter 7
Care and Cleaning
Exercise Care .................................. 7· 1
Keep Surface Clear ............................. 7-1
Avoid Sudden Impact ........................... 7-1
A void Pulling Cords ............................. 7-1
A void Excessive Heat ........................... 7-2
Avoid Liquids .................................. 7-2
Chapter 8
Troubleshooting
Hardware Malfunctions .......................... 8· 1
Modem Diagnostics ............................. 8-2
Display Error Messages .......................... 8·3
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