Abstract: A connection system includes a first connection module and a second connection module, which each have a first connection devices, the first connection module including a second connection device and the second connection module including a third connection device. There is a direct electrical connection between the first connection device of the connection module and the accommodated device and a direct mechanical connection between the connection module and the accommodated device. The first connection module can be locked directly to the third connection device such that the first connection module is electrically and mechanically connected to the second connection module. The third connection device is arranged such that, when the second connection device is locked to the third connection device, mechanical and electrical disconnection of the first connection module from the second connection module is prevented if the second connection module has received a device.

Abstract: A connection system includes a first connection module and a second connection module, which each have a first connection devices, the first connection module including a second connection device and the second connection module including a third connection device. There is a direct electrical connection between the first connection device of the connection module and the accommodated device and a direct mechanical connection between the connection module and the accommodated device. The first connection module can be locked directly to the third connection device such that the first connection module is electrically and mechanically connected to the second connection module. The third connection device is arranged such that, when the second connection device is locked to the third connection device, mechanical and electrical disconnection of the first connection module from the second connection module is prevented if the second connection module has received a device.

Abstract: In a method and system for transmitting print data in blocks from a transmission unit to a reception unit via a data line by means of channel command words (CCWs), a channel initialization command (unit) is transmitted from the reception unit to the transmission unit for starting the data transmission of a first data block and the data block is transmitted from the transmission unit to the reception unit. The reception unit forwards the received data blocks to a check unit for checking the data integrity (parsing) and promptly sends a transmission confirmation message (Sim Term) to the transmission unit before or during the checking process (parsing), so that a second data block can be transmitted from the transmission unit into an intermediate memory of the reception unit during the checking process (parsing) of the first data block.

Abstract: In a method and system for transmitting print data in blocks from a transmission unit to a reception unit via a data line by means of channel command words (CCWs), a channel initialization command (unit) is transmitted from the reception unit to the transmission unit for starting the data transmission of a first data block and the data block is transmitted from the transmission unit to the reception unit. The reception unit forwards the received data blocks to a check unit for checking the data integrity (parsing) and promptly sends a transmission confirmation message (Sim Term) to the transmission unit before or during the checking process (parsing), so that a second data block can be transmitted from the transmission unit into an intermediate memory of the reception unit during the checking process (parsing) of the first data block.