Jumper Description; Comb Termination Jumper Settings; Jp2 Jumper Setting For Rs-422 Txd Termination (Comb); Jp3 Jumper Setting For Rs-422 Rxd Termination (Comb) - Kontron CP6003-RA/RC User Manual

Configuration
4.3

Jumper Description

The CP6003-RA/RC has three jumpers JP1, JP2, and JP3. JP1 is reserved for further use. JP2
and JP3 are used to activate the bus termination for COMB. For the location of the jumpers,
refer to Figures 1-5 and 1-6.
4.3.1

COMB Termination Jumper Settings

When COMB is used and is the last device on the RS-422 bus, then the RS-422 interface must
provide termination resistance. The purpose of the jumpers JP2 and JP3 is to enable this line
termination resistor (120 ohm).
Table 4-5:

JP2 Jumper Setting for RS-422 TXD Termination (COMB)

JP2
Open
Closed
The default setting is indicated by using italic bold.
Table 4-6:

JP3 Jumper Setting for RS-422 RXD Termination (COMB)

JP3
Open
Closed
The default setting is indicated by using italic bold.
Page 4 - 6
TXD termination inactive
TXD termination active (soldered jumper or 0 ohm resistor in 0805 package)
RXD termination inactive
RXD termination active (soldered jumper or 0 ohm resistor in 0805 package)
CP6003-RA/RC
DESCRIPTION
DESCRIPTION
ID 1046-3890, Rev. 1.0