ABB SACE Tmax XT2 - Page 135

1SDH002031A1002 ECN000092998 Rev. B SACE Tmax XT2 – XT4 | 135
Interface
The module has three signalling LEDs:
Figure 33
LED
Description
Power
Reports ON status and correct communication with Ekip Touch:
 off: module off
 fixed or flashing light synchronized on power LED of Ekip Touch: module ON and
communication with Ekip Touch present
 flashing not synchronized with power LED of Ekip Touch (two rapid flashes per second):
module ON and communication with Trip unit absent
Rx
Indicates the status of the communication between the network master and the module (slave):
 off: communication between master and module not active
 fixed light:communication between master and module active
Tx
Indicates the status of the communication between the network master and the module (slave):
 off: communication between master and module not active
 flashing light: communication between master and module active
Configurations
Resistances can be linked to bus RS-485, configuring dip switches located on the side of the
module:
Figure 34
Resistances
Dip switch
Description
Default
Rterm
1 and 2
Termination resistance 220 
Move dip switches 1 and 2 to ON position to
connect Rterm
Off
Rpol
3 and 4
390 pull-up or pull-down resistance 
Move dip switches 3 and 4 to ON position to
connect Rpol
Off
IMPORTANT: move the dip-switches before connecting to Ekip Supply module
and to the communication network