User`s manual

printer port, substitute the programmer cable for the printer

cable. Connect the opposite cable end to the programmer.

Screw on both connectors to counter connectors. This is very

important mainly for the connector to programmer. Though

replacing the printer cable by the programmer cable is

uncomfortable, it is not recommended to operate the 848A

programmer through a mechanical printer switch. Use of an

electronic printer switch isn't possible.

Connect the mains connector of the power supply (or wall-plug

power supply self) to a mains plug, connect the connector to

the appropriate programmer's connector. Then, on the

programmer lights up LED POWER and the programmer 848A

is ready to run. Next switch on the PC and run the control

program.

Caution! If you don't want to switch off your PC when

connecting the 848A, proceed as follows:

• When connecting the programmer to the PC: FIRST insert

the communications cable and THEN the power-supply

connector.

• When disconnecting the programmer from the PC: FIRST

disconnect the power-supply connector and THEN the

communication cable.

Problems related to the 848A



interconnection, and their removing

If you have any problems with 848A  PC interconnection,

see section Common notes please.

Manipulation with the programmed

device

After selection of desired device for your work, you can insert

into the open ZIF socket (the lever is up) and close socket (the

lever is down). The correct orientation of the programmed

device in ZIF socket is shown on the picture near ZIF socket

on the programmer's cover. The programmed device is

necessary to insert into the socket also to remove from the

socket when LED BUSY light off.

Warning: 848A programmer hasn’t protection devices, which

protect the content of programmed device against critical

situations, for example power failures and PC failure

(interrupted cable...). Moreover, a device is usually destroyed

in the programming mode due to forced interruption of the

control program run (Reset or switching the computer off) due

to removing the connecting cable, or unplugging the