Models: H3133-A2, H3171-A2, H3256-A3, and H3342-A4

Jumpers may be fitted to select the following options:

                                Pin numbers
Master active               1-2
Slave active                 3-4
Cable sel                      5-6
LED drive lines          13-14

Shipping default settings

Master is set to on (ie jumper on pins 1-2) No other jumpers are fitted.

Note: LED connections, pin 13 can source up to 18 mA. Pin 14 can sink up to 100 mA.

The jumper positions JP1, JP2, JP3 must not be selected concurrently.