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RF Innovations RFI-9256 Operation Manual

Wireless data transceiver
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RFI-9256 WIRELESS DATA
TRANSCEIVER
OPERATION MANUAL
Software Revision 1.21
© RF Innovations Pty Ltd (ACN065523579), 1998

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  • Page 1 RFI-9256 WIRELESS DATA TRANSCEIVER OPERATION MANUAL Software Revision 1.21 © RF Innovations Pty Ltd (ACN065523579), 1998...

  • Page 2: Table Of Contents

    ATD Dial ..........................39 7.11.3 ATE Echo..........................39 7.11.4 ATH Hang Up......................... 39 7.11.5 ATI Information ........................40 7.11.6 ATO Return to On-Line State ....................40 Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version © RF Innovations Pty Ltd (ACN065523579), 1998...
  • Page 3 Point to Point.......................... 55 9.1.2 Point to Multipoint Dial connection..................56 9.1.3 Point to Point Repeater ......................57 9.1.4 Point to Multipoint (+Repeater)....................58 Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version © RF Innovations Pty Ltd (ACN065523579), 1998...
  • Page 4 SERIAL PORT SELECTION MENU (settings are the same for both ports) ....... 68 15.4 MODEM CONFIGURATION MENU ................... 69 15.5 PERSONALITY MENU....................... 69 15.6 LOG MANAGER MENU ..................... 69 16.Glossary .........................70 Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version © RF Innovations Pty Ltd (ACN065523579), 1998...
  • Page 5 Figure 2-1 Modem Function in Data Transfer ........................1 Figure 2-2 Simplex/Duplex Modes ............................1 Figure 3-1 DTE and DCE Conventions for RFI-9256 ......................4 Figure 4-1 Main Menu ................................5 Figure 5-1 The front panel indicator lights ..........................6 Figure 6-1 RFI-9256 Main Menu ............................
  • Page 6 Figure 11-1 Firmware version .............................. 60 Figure 12-1 Mounting details of the RFI-9256........................62 Figure 12-2. Cable assembly details for interfacing to the RFI-9256 radio modem..............63 Figure 13-1. Modem DB-25 (Male) Chassis Connector, Outside View ................. 65 Table 5.1 LED Indicators Mode 1 ............................7 Table 5.2 LED Indicators Mode2 ............................

  • Page 7: Introduction

    The receiver uses the same hopping code to receive the data. The pseudo-random code minimises interference from other radios. The RFI-9256 is essentially a full duplex radio modem capable of emulating a standard telephone modem. The units can be configured for several types of standard link formats, including point to point (Direct) where modems continually transmit to one another and point to multipoint dialup connections where one unit can talk to many units by the use of a dialling mechanism to address the units.

  • Page 8: Rs-232 Modems

    This is because the specification was written from the perspective of the DTE end of the link. Another example is that the Receive Data signal is an input to DTE, but an output from DCE. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 9: Installation

    1. Connect each RFI-9256 radio to the serial port of a computer or device, using a suitable cable to connect the Auxiliary Port of the RFI-9256. If a cable is unavailable, a cable should be assembled using the pin assignments as a guide (see pin assignments section Table 13.2...

  • Page 10: Point To Multipoint Connection

    • Ensuring the Aux port of the modem is connected to a com port and that the terminal package has the settings as in section 3.1 step 2. • Hold Mode Select Button (on RFI-9256) to select MODE 6(config) to bring up Configuration MENU (on computer).

  • Page 11: Rfi-9256 Location

    3.4 RFI-9256 LOCATION Placement of your RFI-9256 unit is likely to have a significant impact on its performance. In general the rule of thumb with RFI-9256’s is that the higher the placement of the antenna the better the communication link. In practice you should also place the transceiver away from computers, telephones, answering machines, and other similar equipment.

  • Page 12: Configuration

    CONFIGURATION 4. CONFIGURATION The RFI-9256 allows you to change several parameters to optimise its performance for your particular application. All adjustments can be made through a menu system described in section 6, USING INTERNAL MENU COMMANDS or by Hayes commands described in section 7, AT COMMAND SET.

  • Page 13: Using The Front Panel Modes

    5. USING THE FRONT PANEL MODES The RFI-9256 has a unique front panel user interface that can be used to assess the Radio performance without any additional test equipment. A picture of the front panel is shown in Figure 5-1 below. The interface is controlled by means of a small push button switch located on the front panel.

  • Page 14: Led Indicators Mode 1

    5.1.2 LED Indicators Mode 2 When the RFI-9256 is in Mode 2 the display changes to a LED bar graph display that indicates the RSSI (Received Signal Strength Indicator) value, the display has a resolution of 5dBm. Intermediate steps are indicated by a RED display and whole numbers by a GREEN display ie: the bottom two LEDs on green would indicate a received signal of -100dBm while a display of RED on the -100 level would indicate -105dBm.

  • Page 15: Led Indicators Mode 3

    5.1.4 LED Indicators Mode 4 When the RFI-9256 is in Mode 4 the display changes to a LED bar graph display that indicates the Temperature of the RFI-9256 Radio. The temperature is displayed using green LEDs for steps of 10°C from 10° to 60°C. Table 5.4 below shows the radio temperature according to the LEDs on the front panel.

  • Page 16: Led Indicators Mode 5

    5.1.5 LED Indicators Mode 5 When the RFI-9256 is in Mode 5 the display indicates the RS232 Port status. The user can then tell the logic states of the RS232 control lines, a red LED indicates +12volts(logic on) and a green -12volts or no connection (logic off).

  • Page 17: Using Internal Menu Commands

    6.1.1 METHOD 1: Front Panel Mode 6 (config) The setup menu is invoked by: • Connecting the Auxiliary Port of the RFI-9256 to any terminal program. • Set the baud rate for that terminal to 19200, 8, N, 1. •...

  • Page 18: Figure 6-2 Radio Configuration Menu

    To change the network address is (N) must be pressed in the Radio Configuration Menu. The following is displayed: Enter Network Address value (0-63): 32 The default address is 32 but can have a value from 0-63. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 11 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 19 This mode sets the radio as a Back to Back Repeater similar to Dialup Repeater with the addition of the Hayes and Serial port being automatically configured for optimum performance through the repeater for common usage. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 12 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 20: Figure 6-3 Link Control Menu

    (F) The Network Fail Timeout controls the time the system waits when a signal is lost before attempting to re- synchronise. This loss is also indicated by the Network Link LED on the front panel. The factory setting is 5000mS. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 13 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 21: Figure 6-4 Radio Characteristics Menu

    Power setting: 20 dBm 10 dBm 20 dBm 25 dBm 30 dBm (Esc) Previous Menu Enter Choice: Figure 6-5 Tx Power Menu Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 14 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 22: Figure 6-6 Frame Time Menu

    Previous Menu Enter Choice: Figure 6-7 Directional Bias Menu ~115kpbs ~9600bps Modem Modem Video Camera Display Upload Bias Enabled Download Bias Enabled Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 15 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 23: L) Link/Port Protocol Menu

    6.3 (L) Link/Port Protocol Menu This menu is brought up by the second option of the RFI-9256 main menu (Figure 6-1, page 10) and is concerned with the protocol used across the terminal/modem link.
  • Page 24 NOTE: The configuration menu will still be accessible on the AUX port. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 17 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 25: Protocol Configuration Menu

    This menu is for route-able protocols such as Modbus, Honeywell, DNP3 or TDE. The router menu is a large part of configuring a protocol a therefor has been put in a separate section (see 6.3.3 Router Menu) Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 18 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 26: Router Menu

    PC also has an IP address. The RTU address is part of the protocol header sent from the Master Control to the RFI-9256 along the RS-232 link. It is up to the Routing Table to determine to which radios Rx Address the data must be sent to in order for the correct RTU to receive the information.

  • Page 27: Figure 6-15 Route Manager Menu

    RTU address to define the range of addresses to be used by the route . It also requires the slave Rx address associated with the RTU address used as the base. The algorithm works as described in the next paragraph. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 20 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 28: Figure 6-17 Relationship Between Rx And Rtu

    (X) Delete all Routes This option is used to delete all routes in the routing table for the selected port Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 21 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 29: S) Serial Configuration Menu

    6.4 (S) Serial Configuration Menu The serial configuration menu is the third option of the RFI-9256 main menu (Figure 6-1). The Serial Configuration Menu, shown in Figure 6-19, lets the user select the desired modes of operation of each of the two serial ports.

  • Page 30: Figure 6-20 Serial Port Configuration Menu

    Main Port: No Flow Hardware Flow (RTS/CTS) Software Flow (XON/XOFF) No Flow (Esc) Previous Menu Enter Choice: Figure 6-22 Flow Control Menu Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 23 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 31: Figure 6-23 Advanced Functions Menu

    Packet Timers: OutPut = Disabled, Input = Disabled Tx (Out) Packetiser Timer Rx (In) Packetiser Timer (Esc) Previous Menu Enter Choice: Figure 6-23 Advanced Functions Menu Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 24 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 32: M) Modem Configuration Menu

    0. Figure 6-24 below shows the menu. 6.5 (M) Modem Configuration Menu The modem configuration menu is the fourth option of the RFI-9256 main menu (Figure 6-1). The Modem Configuration Menu in Figure 6-25 below allows the lower levels of the modems operations to be configured according to specific requirements.

  • Page 33: Figure 6-26 Modem Port Selection Menu

    (H) Hayes™ ™ Command Control Menu The Hayes Commands are a lower level of communication (then the menu system) between a modem and device. These commands allow the RFI-9256 to emulate a land-line telephone modem. Details of the Hayes commands are in Section 7 AT COMMAND SET.

  • Page 34: Figure 6-29 Dcd Output Control Menu

    Remote DSR controls DCD - DCD is active when a remote radio’s DSR input line is active. • Local DSR controls DCD - DCD is active when the local radio’s DSR input line is active. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 27 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 35: Figure 6-30 Rts Output Control Menu

    RTS Always ON - RTS is always set to ON. • RTS Always OFF - RTS is always set to OFF. • RTS disabled - RTS control has been disabled. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 28 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 36: Figure 6-31 Auxiliary I/O Control Menu

    I/O port number is selected. An example of the menu is shown below in Figure 6-33. AUX I/O POWERUP MENU MODE (Esc) Previous Menu Figure 6-33 Aux I/O Power-up Menu Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 29 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 37: P) Radio Personality Menu

    Delete Security Code -This selection allows the user to delete the security code • Set Current Time - This allows the real time clock’s time to be set. Allow the RFI-9256 doesn’t contain a true real time clock it can maintain a fairly accurate notion of time.

  • Page 38: Radio Statistics Menu

    6.7 (1) Radio Statistics Menu The radio statistics menu is the sixth option of the RFI-9256 main menu (Figure 6-1 on page 10). As the Modem operates in its normal modes it builds up a picture of how well it is operating in any given environment and keeps track of the statistics for that operation.

  • Page 39: D) Diagnostics Menu

    This function simply clears the serial layer logging information from memory. 6.8 (D) Diagnostics Menu The radio diagnostics menu is the final option of the RFI-9256 main menu (Figure 6-1 on page 10). The diagnostic Menu shown in Figure 6-38 is used to test functions of the Radio Modems performance.

  • Page 40: Figure 6-39 Unit Status Display

    Figure 6-41 Log Level Menu • Clear Log - Used to clear the logging file so new data can be logged for debugging purposes. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 33 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 41: Figure 6-42 Remote Transmit Address Prompt

    Hayes Modem MAIN Hayes Modem AUX Online Status Link Layer Console Main Menu --------------------------------------- Press Any Key to return Figure 6-44 Tasks Display Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 34 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 42: Figure 6-45 Links Display

    The source/destination ports are one of three ports, the main, auxiliary or the virtual port. The virtual port is an internal port used by the radio to communicate through the menus. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 35 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 43: At Command Set

    49. 7.4 Port Selection Modifier Unlike conventional modems the RFI-9256 has two serial ports. Each can be configured independently. So to allow access and configuration of alternative ports a modifier may be appended to the end of the command string.

  • Page 44: The Escape Sequence

    For example: After a command is successfully executed, the response is: OK After a connection is established, the response is: CONNECT Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 37 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 45: Dialling

    You may restore your modem to its factory defaults at any time: • Type: AT&F <CR> Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 38 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 46: Viewing The Current Configuration

    ATE1 Enable local command state echo Range 7.11.4 ATH Hang Up The H command forces the modem to hang up. ATH0 Hang up Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 39 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 47: Ati Information

    ATSn? Command and AT&V command. Options ATQ0 Send response codes to the screen ATQ1 Do not send response codes to the screen Range Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 40 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 48: Atv Verbal Response Codes

    You must use the &W command if you wish to save the factory default values to non-volatile memory, and thus preserve these values when you switch the modem off. Options Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 41 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 49: At&G Exclusive Port Control

    AT command tables on page 49. Option AT&W Save general modem configuration data AT&W1 Submit serial port configuration Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 42 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 50: S Register Commands

    S Register 12, the modem will not recognise the escape sequence. Examples ATS12=990 Maintain silence on the line for 0.99 seconds before and after entering the escape sequence Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 43 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 51: Ats21 Set Security Code

    7.12.12 ATS45 Max TX Power Set the Maximum Transceiver output power parameter. For more information see Set Radio Characteristics page Range 0,10,20,25,30 Default Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 44 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 52: Ats47 Frame Time

    7.12.22 ATS80 Get Local Auxiliary I/O Hex data Get/Set the 8 bit auxiliary I/O port. For more information see Auxiliary I/O Port on page 29. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 45 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 53: Ats81 Get Remote Auxiliary I/O Hex Data

    ONLINE controls RTS NETWORK LINK controls RTS CARRIER DETECT controls RTS Remote DSR controls RTS Local DSR controls RTS Remote CTS controls RTS Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 46 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 54: Ats100 Set Port Baud Rate

    22. Must be used in conjunction with the AT&W1 command. Options No Flow Control Software (Xon/Xoff) Flow Hardware (RTS/CTS) Flow Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 47 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 55: Register Commands

    0-86400 Default 7.14 Other Commands There are more AT commands available on the RFI-9256, to many to list in descriptive form. The other commands can be found in the tables on page 49 onwards. Doc Ref : 9256V121 Issue : 1.21c...
  • Page 56 Error or OK ROM Revision Average RSSI ROM Date Average NOISE Manufacture Date Get current port ID Modem Serial Number Get Link Status Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 49 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 57 NOTE: The % register commands are single line commands and cannot be stringed together with other commands. Table 7.11 Response Codes Verbal Description Command accepted CONNECT Connection established RING Incoming call detected NO CARRIER Carrier not detected Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 50 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 58 ERROR Command error BUSY The dialled number or extension is busy NO ANSWER Extension not supported FAULT Protocol or other error Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 51 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 59: Dialup Networking

    DIALUP NETWORKING 8. DIALUP NETWORKING The RFI-9256 provides several features to allow networking, dual port control and remote configuration. The RFI- 9256 has 2 independent serial ports that can be used in communication. 8.1 Extension Numbers To allow access to internal and external ports the modem provides extension numbers. These extension numbers work like an internal PABX where the user appends a two-digit extension number to the destination radios dial string.

  • Page 60: Repeaters

    DIALUP NETWORKING 8.2 Repeaters To provide a simple network functionality the RFI-9256 provides a several Repeater modes and uses a number analyses system. The Back to Back Repeater mode configures the Main serial port and removes its control from the Serial Configuration Menu.

  • Page 61: Figure 8-4 Repeater - Physical Connection

    This simple numbering system allows several repeaters to be concatenated and allows repeaters to branch to other repeaters in a tree like formation. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 54 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 62: Establishing Communications Links

    The RFI-9256’s versatility allows data communication links to be established using a variety of different configurations. This, in turn, makes it possible to extend the range of RFI-9256’s and get around obstacles. Figure 9-1 and Figure 9-2 show the most common and straightforward link, a master communicating to a slave in a dedicated link.

  • Page 63: Point To Multipoint Dial Connection

    The radios use a subset of the Hayes™ compatible commands as shown in Section 7 AT COMMAND SET. This allows two RFI-9256 radio modems to look like a direct telephone line connection. Only one slave can be connected to the master at any one time in this mode, but the master can communicate with any slave within its network.

  • Page 64: Point To Point Repeater

    Repeater Master Slave Repeater Figure 9-7 Point to Point System with Multiple Repeaters - Logical View Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 57 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 65: Point To Multipoint (+Repeater)

    Note, point to multi-point (Dialup) is the only mode available when the radio is configured (using the menu) as a repeater. Slave 1 Master Slave/ Slave 2 Repeater Repeater Slave 3 Figure 9-8 Point to Multipoint with Repeater Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 58 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 66: Auxiliary Input/Output Port

    This prevents devices that are attached to the radios I/O from being unintentionally enabled. • Sample Rate control to balance the performance of the RFI-9256 between fast updates from the I/O device for one application and fast serial data throughput for another application. Fast sample rates below 15ms may degrade serial data throughput when trying to obtain serial data transfer rates of faster than 50,000 bits per seconds.

  • Page 67: Firmware Compatibility

    11. Firmware Compatibility 11.1 The version numbering scheme. The RFI-9256 products contain a firmware version string. This version information provides some information regarding compatibility with other firmware versions. Product Name: Identifies the modem hardware type such as RFI-419, RFI-9256 or RFI-156.

  • Page 68: Version Inter-Compatibility Guide

    COMPATIBILITY 11.3 Version Inter-Compatibility Guide The following firmware versions are for the RFI-9256 Data Strike Series 3 Radio. Firmware Version 1.08 1.09 1.10 1.11 Air Int. Feature Air Int. Feature Air Int. Feature Air Int. Feature ü ü ü û...

  • Page 69: Diagrams

    Figure 12-1 Mounting details of the RFI-9256 The following diagram in Figure 12-2 is a cable assembly diagram for the RFI-9256. The two communication ports are output via DB9 connectors and a 12V plug pack is also connected to supply power to the radio.

  • Page 70: Figure 12-2. Cable Assembly Details For Interfacing To The Rfi-9256 Radio Modem

    DIAGRAMS Figure 12-2. Cable assembly details for interfacing to the RFI-9256 radio modem Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 63 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 71: Technical Specifications

    *RANGE is dependent upon antenna and environment, a typical range calculator is available to download from the RFI Application notes on the RFI WEB page. (www.rfinnovations.com.au) Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 64 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 72: Pin Assignments

    Power supplies used should be capable of at least 1amp continuous current. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 65 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 73: Trouble Shooting

    RFI-9256 in the field. The RFI-9256 essentially functions as a null modem cable. If the application will not work with a hard wire connection then it will not work with the RFI-9256, and the problem lies within the application or other hardware (such as the computer serial ports or flow control).
  • Page 74 TROUBLE SHOOTING “I have the RFI-9256 set up between two computers and have been unsuccessful in my attempts to establish a link using LapLink.” At various times difficulty using the RFI-9256 with LapLink has been documented. The cause, while not confirmed, is believed to be due to LapLink changing baud rates, which the RFI-9256 does not support.

  • Page 75: Factory Defaults

    19200 Baud • No Parity • 8 Data bits • 1 Stop bit • No Flow Control • Packet Timer Disabled Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 68 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 76: Modem Configuration Menu

    • Security code is disabled • Menu timeout is 15 minutes. 15.6 LOG MANAGER MENU • Log level = General Information Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 69 © RF Innovations Pty Ltd (ACN065523579), 2000...

  • Page 77: Glossary

    The range of signal frequencies that are accepted or passed by a circuit or network. Base Frequency The frequency band occupied by a signal in its original or unmodulated form. The base frequency for the RFI-9256 is 915-928MHz (in Australia) and 921-929MHz (in New Zealand).
  • Page 78 Control key. These symbols are not usually printed, and are generally used to control screen formatting and cursor positioning. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 71 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 79 An acronym for Data Carrier Detect. See also Carrier Detect. Dedicated Line A communications line which is not dialled. Also known as a leased or private line. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 72 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 80 An acronym of Data Terminal Equipment. See Data Terminal Equipment. Dual Port Control The ability of the RFI-9256 modems to communicate out of both the Aux and Main ports to either the Aux or Main port of the receiving modem.
  • Page 81 Only available with the Main Port. If activated, will terminate the Communication Link when the Data Terminal Ready pin is low. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 74 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 82 A method of communication in which your modem or software displays data locally on your screen, without relying on the host computer to echo the characters back. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 75 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 83 List of information concerning the modem. See Fault Log, Physical Layer Log, and Serial Layer Log. Loop-back Directing signals back toward the source at some point in the communications path. Used in testing RFI-9256. Main Port Port connected to full RS-232 (7 wire) cable. Cable contains Tx, Rx, DCD, RTS, CTS, DTR, and ground. Allows hardware flow control (hardware handshaking).
  • Page 84 On-line Describes to state of a connection as in session and currently connected. The system has dialled and a communications link has been formed allowing the transfer of data. On-line LED on front of RFI-9256 is activated. On-line Requests Timer Controls the time between slave integrity checks by the master.
  • Page 85 One radio (the master) communicates with more that one slave, while each slave can only talk to the master. As opposed to Point to Point Communication. Point-to-Point Communication A connection between two points only. Communications established automatically with the RFI-9256 and is not controlled by the AT commands. As opposed to Point to Multipoint Communication.. Port The point of connection, usually a physical connector, between a computer and a peripheral device, another computer or a network.
  • Page 86 Data transmission in which each bit of information is sent sequentially through a single data path. Serial Logging Shows information regarding the performance of both serial ports. Serial Port Port that receives/transmits serial data. The RFI-9256 has two serial ports, the Main and Auxiliary (Aux) ports. Simplex Data communications in one direction only. Slave Passive modem.
  • Page 87 Power of signal emanating from the antenna. This should be the minimum required to maintain a solid data link. Turnaround Time The time required to reverse the direction of transmission when operating in half duplex mode. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 80 © RF Innovations Pty Ltd (ACN065523579), 2000...
  • Page 88 ZModem Designed to rectify limitations of previous models as well as providing support for high speed, packet and network communications environments. Doc Ref : 9256V121 Issue : 1.21c Unrestricted Version Page : 81 © RF Innovations Pty Ltd (ACN065523579), 2000...

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