E 10210 12 - 2005
Protocols:
MODULAR X6 CCTALK VALIDATOR 8
2.
PHYSICAL LEVEL
2.1
Voltage levels and transmission speeds
The data is established using TTL levels: 5 volts is a ‘1’ logic and 0 volts is a ‘0’ logic, being the
level of rest of 5 volts. The validator has a “pull-up” resistor at 5 Vdc.
Mark (idle): +5Vdc.
Space (activates): 0Vdc
The communication is asynchronous and half-duplex, that is, it cannot simultaneously transmit
more than one element on the bus.
The ‘timing’ of the communication meets the characteristics of the RS232 industrial standard.
RS232 communication has various parameters that in this application are configured as
follows:
9600 bauds, 1 start bit, 8 data bits, without parity, 1 stop bit
2.2
Connector
The validator has two connectors:
Type 7 connector, following the CCTALK specification: 4 ways “standard interface, JST
connector”. The description is as follows:
PIN NAME
DESCRIPTION
1
VIN
Power supply of the validator
2 N.C. Not
connected
3
GND
Ground, internally connected to 0V
4 /DATA Data
line
Table 1: 4 pins Conector CCTALK
