Connect Tech Titan/cPCI Jumpers JA, through JD, Description, Position/Function, clear of all jumpers, no bias or termination jumpers, Titan/cPCI Rear I/O Opto 2 and 4 port adapters

Titan/cPCI User’s Manual, Connect Tech Inc.

Titan/cPCI Rear I/O Opto 2 and 4 port adapters

•The four port Rear I/O Opto requires a four port Front I/O Titan to be installed.

•The two port Rear I/O Opto requires a two port Front I/O Titan to be installed.

•In either case, when using the Titan/cPCI Rear I/O Opto, the front I/O Titan/cPCI board must be configured for RS-485, with no bias or termination jumpers installed. (Ensure the front Titan/cPCI is clear of all jumpers if you are installing a Titan/cPCI Rear I/O Opto.)

Jumpers JA	Description	Position/Function
through JD
1	RS-232/RS-485 select	In = RS-232
		Out = RS-485

2	RS-485 RX tri-state control	In = ½ Duplex mode (2-wire)
		Out = Full or Multi-drop (4-wire) mode

3	RS-485 RTS +/-	RS-485 RTS+/- Terminator resistor, 150 ohms
	Termination resistor

4	RS-485 TxD +/-	RS-485 TXD+/- Terminator resistor, 150 ohms
	Termination resistor

5	RX485 CTS +/- Bias and	RS-485 CTS+/- Bias and termination. Both jumpers
	Termination network	must be installed at the same time.

6	RX485 CTS +/- Bias and	RS-485 CTS+/- Bias and termination. Both jumpers
	Termination network	must be installed at the same time.

7	RX485 RXD +/- Bias and	RS-485 RXD+/- Bias and termination. Both
	Termination network	jumpers must be installed at the same time.

8	RX485 RXD +/- Bias and	RS-485 RXD+/- Bias and termination. Both
	Termination network	jumpers must be installed at the same time.

Table 4: Titan/cPCI Rear I/O Opto jumper descriptions

Note for Rear I/O Opto users:

All jumpers must be removed from the Front I/O Titan/cPCI when using the Titan Rear I/O Opto.

Revision 1.01