User's Manual
Table Of Contents
- Cover
- Program License Agreements
- TABLE OF CONTENTS
- Approvals And Safety Summary
- Introduction 1
- Basic Checkout 2
- Getting To Know Your 7535 3
- 3.1 Features Of The 7535
- 3.2 The Battery
- 3.3 Switching The 7535 Hand-Held On And Off
- 3.4 The Keyboard
- 3.5 The Display
- 3.6 7535 Indicators
- 3.7 Internal Scanners
- 3.8 Connecting & Disconnecting Tethered Peripherals
- 3.9 Monitoring The Battery And Maximizing Run Time
- 3.10 Monitoring The Network Connection
- 3.11 Uploading Data In A Docking Station
- 3.12 General Maintenance
- Working With Windows CE 4
- Configuration 5
- 5.1 Remote Desktop Connection
- 5.2 Pocket PC Compatibility
- 5.3 The Control Panel
- 5.4 Control Panel Icons
- 5.5 Basic Setup
- 5.7 Scanner Properties Setup
- 5.7.1 Scanner Options
- 5.7.2 Bar Codes
- 5.7.2.1 Code 39 Settings
- 5.7.2.2 Code 128 Settings
- 5.7.2.3 EAN 13 Settings
- 5.7.2.4 EAN 8
- 5.7.2.5 UPC And EAN Settings
- 5.7.2.6 UPC A Settings
- 5.7.2.7 UPC E Settings
- 5.7.2.8 Codabar
- 5.7.2.9 Code 93
- 5.7.2.10 Code 11
- 5.7.2.11 Interleaved 2 of 5
- 5.7.2.12 MSI Plessey
- 5.7.2.13 Discrete 2 of 5
- 5.7.2.14 IATA 2 of 5
- 5.7.2.15 Postal: Australian
- 5.7.2.16 Postal: Japanese
- 5.7.2.17 Postal: Korean
- 5.7.2.18 Postal: PlaNET
- 5.7.2.19 Postal: PostNET
- 5.7.2.20 Postal: Royal Mail
- 5.7.2.21 2D DataMatrix
- 5.7.2.22 2D Maxicode
- 5.7.2.23 2D PDF-417
- 5.7.2.24 2D Micro PDF-417
- 5.7.2.25 2D QR Code
- 5.7.2.26 2D RSS Code
- 5.7.2.27 Aztec
- 5.7.3 Translations
- 5.8 SNMP (Simple Network Management Protocol) Setup
- Tekterm Application 6
- 6.1 The Tekterm Application
- 6.2 Additional Keyboard Functions
- 6.3 Keyboard Modes
- 6.4 The Tekterm Status Area
- 6.5 TESS Emulation
- 6.6 ANSI Emulation
- 6.7 The Radio Statistics Screen
- 6.8 The Tekterm Startup Display Menu
- 6.9 Working With Menus
- 6.10 Resetting The 7535 Hand-Held Computer
- 6.11 The Parameters Menu
- 6.12 Display Options
- 6.13 More Parameters
- 6.14 Radio Parameters
- 6.15 System Parameters
- 6.16 Scanner Control Panel
- 6.17 View Manager
- 6.18 Applications
- 6.19 Ports- Tether And Console
- 6.20 Network
- Peripheral Devices & Accessories 7
- 7.1 External Bar Code Readers
- 7.2 The 7535 Battery
- 7.3 Important Charger Safety Instructions
- 7.4 Chargers
- 7.5 Gang Charger
- 7.6 Combo Charger
- 7.10 Bluetooth Peripherals
- 7.11 The 7535 Picker Cradle
- Specifications 8
- Support Services And Worldwide Offices
- Port Pinouts
- USB Setup Application
Psion Teklogix 7535 Hand-Held Computer User Manual 247
Chapter 6: Tekterm Application
802.IQ v2
Initial RTT (Round Trip Time)
Round trip time is the elapsed time between a 7535 hand-held computer transmis-
sion and an access point acknowledgement. Each 7535 continuously adjusts the
acceptable round trip time, calculating the average elapsed time over a number of
transmissions. If an acknowledgement takes longer to receive than the average
round trip time calculated, the 7535 will resend the transmission.
Because 7535s cannot calculate an average round trip time without a number of
transmissions, a starting point or “Initial Round Trip Time” is required. The 7535
uses the time assigned to the “Initial RTT” parameter as a starting value for round
trip calculations. Once the 7535 begins transmitting and receiving data, this value
will be adjusted to reflect the actual average round trip time between transmissions
and acknowledgements.