GE Corometrics 250 Series - Calibration

4-52 250 Series Maternal/Fetal Monitor Revision D
2020551-001
Maintenance: Calibration
Communications Screen
Calibration
This section of the manual provides a calibration procedure which allows authorized
service personnel to perform an instrument alignment using a minimum of test
equipment. This procedure is not intended to replace a complete instrument
checkout and alignment as performed at the GE factory. It should be considered a
performance check and troubleshooting guide to be used in conjunction with other
information supplied throughout this service manual. It is important to mention, this
section of the manual is not intended as a substitute for proper professional training,
or familiarity with the monitor. Only qualified service personnel should attempt
servicing the 250 Series Monitor.
Table 19. J109, J110, and J111
Communications Ports Connector Pinout
J109, J110, Or J111 Pin # Signal Description
1RTS
2RXD
3GND
4GND
5TXD
6CTS
Exit
Communications Setup
Baudrate Mode
J111 2400 Loopback OK
J110 2400 Loopback OK
J109 2400 Loopback OK