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Online Media STB1



Online Media was established as a subsiduary of Acorn Computer group in August 1994 to develop products and services for the networked multimedia market. Online Media produced intelligent set top boxes for interactive TV applications. The STB1 was Online Media's first set top box.

The Cambridge Interactive TV trial began in September 1994 with 10 "tame" users and a couple of content providers using the existing Cambridge Cable network. The trial was later expanded to 100 real users and a number of schools. The Cambridge Cable network was upgraded to extend fiber optic cable to the streetside boxes and coaxial cable used in the local loop to individual premises. The upgraded network used ATM to provide full two way broad band capabilities at up to 2 Megabits per second. Content providers during the trial included the Post Office, Anglia TV, IPC Magazines, Tesco, NatWest bank and the BBC.

In 1996 Online Media launched the Set Top Box 2 (STB20) 

When Acorn was broken up in April 1999 the set top box business was sold to Pace Micro Technology for GBP200,000.


Here is the Acorn press release News from Online Media  which announces the Cambridge iTV trial..

Set Top Box STB1

The STB1 is basically a customised Risc PC, in an A7000 style case, with a handheld controller. The Acorn project name for the STB1 was "Spinner". The serial number on this STB1 is 100185, and I supect only 200-300 were produced for the trials. The STB1 configuration was:

Onlime Media STB1 box

Online Media STB1 box 

OM STB1 box label

Online Media STB1 box label

Online Media STB1 box open

Online Media STB1 box open 

This shows the STB1 in the protective padding with the remote control in the white box to the left. Also visible on the left are the power and SCART cables. No documentation was included.

Online Media STB1 front

 Online Media STB1 (front)

Online Media STB1 right

 Online Media STB1 (right)

Online media STB1 back

Online Media STB1 (back) 

The back of the STB1 showing, from left to right:

Note that there are no symbols on the case to indicate what each port is for.

Online Media STB1 bottom

Online Media STB1 (bottom)

 The bottom of the STB1 showing the Model: STB10N, and Serial Number: 100185.

Online Media STB1 open 

 Online Media STB1 with cover removed

This picture shows the inside of the STB1, from left to right:

Online Media STB1 without Movie Magic

 Online Media STB1 with Movie Magic removed

With the backplane and the Movie Magic card removed, this shows:

Online Media STB1 motherboard

 Online Media STB1 motherboard 

With the ATM NIC and CPU card removed, this shows:


Model No.STB10N
Serial No.100185
Unique identityn/a
Motherboard part no.1104,000 Mk1 "Spinner"
CPU TypeARM610
CPU Clock30 MHz
Memory ControllerIOMD
Memory4MB SIMM
Memory Clock16MHz
Video ControllerVIDC20
Floppy Disc Driven/a
Hard Disc Controllern/a
Hard Disc Driven/a
Backplane ModelAcorn 1 slot backplane
Backplane part no1202,310
Podule 0Wild Vision Movie Magic
NICWild Vision ATM
OS Date18-Feb-94
SICK v1.22
ARMSi v4.0