Speciality Converters

TTL Converters

Easy connections between TTL devices and RS-232 ports

TTL3USB9M

422TTL

232TTL

232OTTL


Make easy connections between your
TTL equipment and RS-232 ports.

All models convert two channels in each direction from TTL to RS-232 or RS-422. Model 232OTTL offers 2000 V optical isolation between the RS-232 and TTL sides and runs at a maximum baud rate of 38.4 kbps.

The RS-232 side is port powered. The TTL side requires +12 VDC at 100 mA isolated from the RS-232 side.

B&B Electronics also has several non isolated TTL converters that can run at a maximum baud rate of 115.2 kbps: Model 232LPTTL is a port-powered version with DB9 connectors. Model 422TTL is an RS-422 to TTL converter that requires +12 VDC and has DB25 connectors. Model 232TTL requires +12 VDC and has DB25 connectors







232LPTTL33

232LPTTL

Model No.
RS-232/422/USB Connector
TTL Connector
Isolation
Power Supply
232OTTL
DB25 female
DB25 male (5V)
2000V
232PS
232LPTTL
DB9 female
DB9 male (5V)
None
Port-powered
232LPTTL33
DB9 female
DB9 male (3.3V)
None
Port-powered
TTL5USB9M
USB type B (includes cable)
DB9 male (5V)
None
USB bus-powered
TTL3USB9M
USB type B (includes cable)
DB9 male (3.3V)
None
USB bus-powered
422TTL
DB25 female
DB25 male (5V)
None
422PS
422TTL33
DB25 female
DB25 male (3.3V)
None
422PS
232TTL
DB25 male
DB25 female (5V)
None
232PS