FECO COMMS # 41/1

	FECO:	COMMS # 41/1
	MODIFICATION NO:	N/A
	PRODUCT:	3COM / US ROBOTICS SPORTSTER FLASH MODEM
	SUB-ASSEMBLY:	N/A
	ESTIMATED MAN HOURS:	N/A
	CLASS OF CHANGE:	INFORMATIONAL
	REASON FOR CHANGE:	TO INTRODUCE A NEW DIAL UP DIAGNOSTIC MODEM

1. Introduction

The US Robotics Sportster Flash Modem is the new dial up diagnostic modem to be supplied with all systems: it replaces all previous dial up diagnostic modems. It may also be called a 3 com sportster modem.

2. Appearance

It is dark grey in colour and measures approx 6 x 4.5 x 1.5 inches. There is an external power supply mounted in the 13 amp plug. It can lay flat or has a foot to be mounted vertically.

At the rear there are left to right, a 25 pin D type connector for data, a connector for a speaker, an RJ45 connector to the analogue PSTN phone line, an RJ45 connector for a phone and a dc connector for the power.

Its speed is from 300 to 33.6k. The EDP specification is shown in Para 4.

3.  

   Front Panel Lights

   AA Auto Answer

   CD Carrier Detect

   RD Received Data

   SD Send Data

   TR Data Terminal

   CS Clear to Send

   Arq/fax error control/fax

   Oh off hook

4. Function

The sportster modem is for asynchronous two wire pstn operation only. It does not have a leased line, synchronous or edp fax capacity.

The phone connection is to allow an analogue phone to share the same phone socket line. To use this line for phone, the modem must be switched off. You cannot use the modem and phone in conjunction with each other.

5. Edp specifications

Compatibility data: ITU-T V.34 (Inc.33,600bps), V.FC, ITU-T V.32bis, V.22 bis, V.21 and bell 212a.

Speeds data: 33.6k, 31.2k, 28.8k, 26.4k, 24k, 21.6k, 19.2k, 16.8k, 14.4k, 12k, 9600, 7200, 4800, 2400, 1200, 1200/75/1200,300bps

Error correction ITU-T v.42, MNP 2-4

Data compression ITU-T v.42 bis, MNP level 5

Operation full/half duplex on 2 wire telephone line

Format (DTE-DCE) serial, binary, asynchronous

Command set compatible with the at command set

Flow control XON/XOFF, RTS/CTS

Telephone interface RJ11

Voice coding ima adpcm

Tone detection DTMF

Call differentiation toggle between voice and data

Silence detect adjustable level and duration

Dialing pulse (pulses -0-9),

Tone (DTMF 0-9, #,*)

Call status dial tone, busy tone, voice detect

Configuration storage two modem configurations and four telephone numbers

Transmission level -10dBm

Reception sensitivity -43dBm

Operating temperature from 0 to +50 C

Storage temperature from -40 to +70 C

Transportation

Temperature from -40 to +70 C

Operating humidity from 20% to 80% without condensation

Storage humidity from 5% to 90% without condensation

Operating 3000 metres

6. Mec identity

Earlier models - Sportster-011663-modem (56k)

Later models - Sportster-015663-modem (56k)

Both are identical except for change of manufacturers part number.

7. Information displays

   7.1 enter ats for help and command summary.

   7.2 enter atin to display the required information:-

           ATI

           0 3361 product code

           1 6a00 rom checksum

           2 Ok ram selftest

           3 Us Robotics Sportster flash rev 3.0

           4 Current settings

           5 Nvram settings y0 y1

           6 Link diags -

           7 Configuration profile

           8 Blacklist

           9 Plug and play information

           Example of ATI 4

           Bo e1 f1 m1 q0 v1 x4 y0

           &a3 &b1 &c1 &d2 &h1 &i0 &k1

           &m4 &n0 &r1 &s0 &t5 &u0 &y1

           S00=0 s01=1 s02=43 s03=13 s04=10 s05=8 s06=4

           S07=60 s08=2 s09=6 s010=14 s011=72 s012=50 s013=0

           S015=0 s016=0 s018=0 s019=0 s021=16 s022=17 s023=19

           S025=5 s027=1 s028=8 s029=20 s030=0 s031=128 s032=2

           S033=0 s034=0 s036=14 s038=0 s039=11 s040=0 s041=0

• Example of ati7

Product type uk external

Options v32bis, v.fc, v. 34 +

Fax options class 1/ class 2.0

Clock freq 92.0mhz

Eprom 256k

Ram 64k

Eprom date 11/18/96

Dsp date 11/18/96

Eprom rev 3.0

Dsp rev 2.0

• Example of ati8 blacklist

Time 00: 12: 26

Dialled numbers inactive

Dial attempts inactive

• Example of ati9

(iousr0007\\modem\\sportster 33600 fax/voice ext) ff

• The user guide lists general information, the command set and s register listing.

8. Set up
1. Enter ati3 responds with us robotics sportster flash rev 3.0
2. If you want to display current setting, enter:- ati4
3. If you want to display nvram 0 & 1 profiles enter:- ati5.
4. To load generic template enter:- at&f0.
5. To load edp settings enter :-

At e0 q1 &a0 &b0 &h0 &i0 &n0 &r1 s0=001 &w0

(enter the above string without spaces)

6. To check and display current, enter:- ati4
7. To check and display nvram 0 & 1 profiles, enter:- ati5
8. E0 echo off

Q1 no results code

&a0 arq results code disabled

&b0 variable follows connection rate

&h0 flow control disabled

&i0 rx flow control software flow control disabled

&n0 variable speed connect rate

&ri rx hardware flow control modem ignores rts

S0=001 auto answer after one ring

&w0 modified the nvram 0 profile

9. The port must be set to auto np for connection to the modem
9. Servicing
   Servicing will be by replacement

10. Cable specs

Standard cable specs are to be used except that where 3 wire cables are used, pin 8 at the modem must not be connected to pins 6 and 20, i.e. shorts on 4 & 5 and 6 & 20 only.

Return to Index