ACS103

* Enables three full-duplex serial transmission channels through a single fiber optic cable,providing a virtual six fiber path.
* Link lengths up to 5 km.
* Uses a single Ping Pong LED (PPLED) to both transmit and receive data.
* Supports 7 synchronous data rates up to 64 kbps or asynchronous data rates from DC to 19.2/9.6 kbps.
* Supports three additional low frequency asynchronous channels or RS-232 handshake signals: RTS, CTS, DTR and DSR.
* BER 10^-9.
* Digital mode, allowing the user to add an external amplifier. Also enables the ACS103 be used in non-fiber applications e.g. IR/RF.
* ACS101 emulation mode giving 100 % compatibility with the ACS101.

The ACS103 is a complete synchronous opticalmodem controller/driver IC, supporting various user-programmable, full-duplex data-rates to 256 kbps over a single fiber. Alternatively, up to 3 channels of 64 kbps each can be carried. In 'Standard' mode, the fiber may be up to 2.5 km long, or up to 5 km in 'Double' mode.

Communicating optical-modems of ACS103 automatically maintain synchronisation with each other such that the receive phase of one modem is lined-up with the transmit phase of the other, compensating for the propagation delay presented by the link. Link lengths from zero to maximum distance are catered for automatically.

The ACS103 incorporates ACS101 functionality, with additional logic to support 3 channels.