Digi SM-300 - Adjustment Procedures; Location of Label Gap Sensor and Thermal Head; Label Gap Sensor Adjustment

SM-300 Service Manual
32
4.1.2.3 RS-485 Loop Back Test
KEY TO PRESS OPERATION
Testing the 4-Line port.
Please plug in the test connector on the 4-Line port before
proceed (The test connector is show at below).
If the port is okay, it will display the message below.
RS485 LOOP BACK TEST
THE TEST IS SUCCESSFUL
OR ELSE
RS485 LOOP BACK TEST
TEST FAIL !
TEST CONNECTOR FOR 4 LINE RS485 PORT
Connect pin 1 with pin 3
Connect pin 2 with pin 4
4.1.2.4 Ethernet Test
KEY TO PRESS OPERATION
Testing the Ethernet port.
If the port is okay, it will display the message below.
ETHERNET TEST
THE TEST IS SUCCESSFUL
OR ELSE
ETHERNET TEST
TEST FAIL !