Kontron PB-SIO4A - Manual (Page 26)

PB-SIO4A Configuration
ID 19958, Rev. 0300 Page 3 - 4 ® PEP Modular Computers GmbH
3.3 Jumper Settings
The jumper positions B53 to B69 are located on the rear side of the PB-SIO4A and are
solder bridges. Jumpers B51 and B52 are located on the front side of the PB-SIO4A and
if installed are wire bridges. They are set at the factory as required and should not be
changed.
$ $ Note!
Before operating the PB-SIO4A ensure that the B51 and B52
jumper settings are set correctly according to the application. No
external VCCext may be applied to the non-optocoupler version,
and, correspondingly, external VCCext must be applied to optocou-
pler versions.
Table 3-1: PB-SIO4A Jumper Settings
Jumper/Channel Setting Default Function
B53 A 2-3
1-2
1-3
1-2-3
X receiver and driver line connected
pull-up resistor for driver line
pull-up resistor for receiver line
pull-up resistor for driver and receiver line
B55 B
B57 C
B59 D
B54 A 2-3
1-2
1-3 X receiver* and driver* line connected
pull-down resistor for driver* line
pull-down resistor for receiver* line
B56 B
B58 C
B60 D
B61 D closed
open
X 150 ohm termination resister connected
150 ohm termination resister not connected
B62 A
B63 B
B64 C
B65 C 1-2
1-3 X receiver control by driver enabled
receiver control permenant enabled
B66 D
B67 A
B68 B
B51 and B52 closed
open
*
**
VCCext and GNDext from piggyback
*
* (This is the operational configuration
...... when optocouplers are not installed.)
VCCext and GNDext from external source
** (This is the operational configuration
...... when optocouplers are installed.)