Pin Description; Routine Maintenance And Troubleshooting; Troubleshooting - Gram FH Serie Manual De Utilización

Pin description

2 – TXD - - - scale transmits data
3 – RXD - - - scale receives data
5 – GRD - - - signal ground
Note: "Handshake" signals, such as "clear to send" (CTS) are not used. The
peripheral must have a mínimum buffer (15 characters).
It is suggested that the máximum recommended cable lenght is 15 meters,
the load impedance of the device connected should be between 3000 and
7000 ohms with no more than 2500 pf shunt capacitance.

ROUTINE MAINTENANCE AND TROUbLESHOOTINg

Troubleshooting

Only the trained professionals are allowed to do repair work. There is a risk
for the user if non-professionals do the repair.
24