TOP > Troubleshooting > Cannot Communicate via External Input/Output Signal Terminal Cannot Communicate via External Input/Output Signal Terminal What to check Countermeasure Are the product and external device correctly connected with a cable? Connect the cable correctly. Rear View Is the power of the external device on? Power on the external device. Power the product and external device off and then on again if the error cannot be resolved. Powering On/Off the Product Contact your SATO technical support if the error still cannot be resolved. Contact Information for When You Are in Trouble Back to top