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5556 Modem Card
Copyright
Copyright 2001—Octagon Systems Corporation. All rights reserved.
The contents of this document and the specifications herein may
change without notice.
Trademarks
Octagon Systems Corporation
trademarks of Octagon Systems Corporation. DiskOnChip
registered trademark of M–Systems.
Notice to user
The information contained in this document is believed to be correct.
However, Octagon assumes no responsibility for any of the circuits
described herein, conveys no license under any patent or other right
and makes no representations that the circuits are free from patent
infringement. Octagon makes no representation or warranty that
such applications will be suitable for the use specified without
further testing or modification.
st
6510 W. 91
Ave.
Westminster, CO 80031
Technical support: 303–426–4521
Telephone: 303–430–1500
FAX: 303–426–8126
Web site: www.octagonsystems.com
, the Octagon logo and Micro PC™ are
®
5556 Modem Card
User's Manual
is a
®
5182(0501)
1
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Table of Contents
Summary of Contents for Octagon Systems 5556
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Page 1: 5556 Modem Card
5556 Modem Card Copyright Copyright 2001—Octagon Systems Corporation. All rights reserved. The contents of this document and the specifications herein may change without notice. Trademarks Octagon Systems Corporation , the Octagon logo and Micro PC™ are ® trademarks of Octagon Systems Corporation. DiskOnChip is a ®... -
Page 2: Fcc Instructions
Micro PC Control Cards. You can use your 5556 card in conjunction with other Micro PC expansion cards, tailoring your system for a wide variety of applications. The 5556 card can also be used in an IBM-compatible PC. Micro PC... - Page 3 cards are too tall to fit in an XT, but will fit in AT industrial size and other AT-size cases. All Micro PC products are modular, so creating a system is as easy as selecting and plugging in the products you need.
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Page 4: Table Of Contents
Table of Contents 5556 Modem Card ................................1 Copyright ..................................1 Trademarks ................................... 1 Notice to user................................1 ≡ FCC instructions ..............................2 ≡ Preface..................................2 Table of Contents ................................4 List of Figures .................................. 5 List of Tables ..................................5 Overview.................................. -
Page 5: List Of Figures
List of Figures Figure 1 5556 Component diagram.................8 Figure 2 5556 Card orientation..................10 List of Tables Table 1 Interrupt request lines: W1................9 Table 2 Base port address: W1..................9 Table 3 Prefix, repeat, and escape commands............13 Table 4 Set 300/1200 BPS protocol ................13 Table 5 Dialing options....................13... -
Page 6: Overview
Overview Introduction The 5556 Micro PC Modem Card is a compact 56K BPS data modem solution for the Micro PC product line. It supports baud rates up to 56K. It is AT command set compatible and will work with any popular AT compatible communication software written for the PC. -
Page 7: Equipment
The 5556 may be used with any Micro PC Control Card. The 5556 contains static sensitive CMOS components. The greatest danger occurs when the card is plugged into a card cage. The 5556 becomes charged by the user and the static discharges to the backplane from the pin closest to the card connector. -
Page 8: Installation
Installation Before installing the 5556 Modem Card, refer to Figure 1 for the location of various connectors and jumpers: Figure 1 5556 Component diagram... -
Page 9: Interrupt Request
IRQ7 * = default Base port address The 5556 can be configured as COM1, COM2, COM3 or COM4. It is configured at the factory to operate using COM3. To change the base port address, you must reconfigure jumper block W1. -
Page 10: Figure 2 5556 Card Orientation
To install the 5556 in the card cage: Take care to correctly position the 5556 in the card cage. The Vcc and ground signals must match those on the backplane. Figure 2 shows the relative position of the 5556 as it is installed in the card cage. -
Page 11: At Commands
9. Power on your system. 10. Set the communications speed of the 5556 to baud rates up to 56K BPS. The 5556 defaults to 56K BPS when first powered on. Also set the character length, parity and stop bits. Refer to your software manual for more specific information. -
Page 12: Escape Sequence
To switch between modes, the following two commands are used: n Escape sequence (+++) sets the modem from the on–line mode back to a command mode and n ATO command returns the modem back to the online mode again after a +++ has been issued Escape sequence Once the modem is on–line, the special escape sequence of +++ returns the modem to the command mode without breaking the... -
Page 13: At Commands
AT commands All commands sent to the modem must begin with the attention code AT (except for the +++ (escape) and the A/ (repeat)) commands. The following tables group the commands by function. Table 3 Prefix, repeat, and escape commands Command Description Command line prefix that tells the modem a command... -
Page 14: Table 6 Echo Commands
Table 6 Echo commands Command Description Command characters not echoed Command characters are echoed * = default Table 7 Hook control Command Description Force modem on–hook, i.e. hang up Force modem off–hook, i.e. make the line busy * = default Table 8 Volume control Command... -
Page 15: Table 11 Read/Write To S Registers
Table 11 Read/write to S registers Command Description Read and display value of register r Sn=v Set default S register to value v Table 12 Result code and dialing options Command Description Basic call progress, blind dialing Extended call progress, dial tone detection Extended call progress, blind dialing and busy signal detection Extended call progress, dial tone, and busy signal... -
Page 16: Table 16 Guard Tone
Table 16 Guard tone Command Description &G0* No guard tone &G1 Disable guard tone &G2 1800 Hz guard tone * = default Table 17 Make/break pulse ratio Command Description &P0* 10 pps pulse dial with make /break dial ratio of 39/61 (USA/Canada) &P1 10 pps pulse dial with make/break dial ratio of... -
Page 17: Result Codes
Result codes The 5556 responds to most AT commands with the following result codes: Table 19 Result code summary Digit Code Definition Successfully executed command line Connect 300 BPS connection established Ring Ring signal detected No carrier Carrier not detected within Register S7 detect... -
Page 18: S-Register
S–Register The S–Register stores the current configuration of the 5556. These settings are changed directly via “S” commands or indirectly via commands such as the &C command. For example, each time a &C command is issued, the content of S–Register 21 is altered. Use the Z or &F command or power–off/on the modem to restore the default... -
Page 19: Troubleshooting
Make sure you have selected the correct COM port in your communications software program. Make sure the W1 jumpers on the 5556 are set to the correct COM port. The command characters do not appear on the screen Type ATE1 <Return> and then type AT. Or, use the echo/no echo feature in your software program. -
Page 20: Technical Specifications
Technical specifications Data rate Up to 56K BPS Data format 7 or 8 data bits; 1 or 2 stop bits; odd, even or no parity Operation Full duplex Dialing Rotary (pulse) or touchtone; pulse or tone may be combined in same dial string. -
Page 21: Other Parameters
Other parameters Table 21 Performance specifications Parameter Comment DTMF level –7.5 dBM 0 dBM DTMF twist (balance) 3 dB DTMF tone duration 70 ms Pulse dialing rate 10 pps 20 pps Pulse dialing make/break 39/61% 33/67% CCITT Pulse interdigit interval 785 ms Billing delay interval 2.0 sec... -
Page 22: Jumper Configurations
Table 22 Telephone line interface specifications Parameter Telephone line impedance match 600 ohms Ring detect sensitivity 38 Vrms (on hook, type B ringer) Telephone line holding current 0 mA 20 mA 100 mA Jumper configurations Table 23 Interrupt request lines: W1 Pins jumpered [1-2] IRQ2...