2.3.8.
Communications Jacks
The communication jacks are located beneath the instructor work surface on the right side of the Instructor
Operating Station console. See Figure 2-16. The forward set of jacks are instructor communication jacks
which are used by the instructor to plug in headsets and microphones to communicate with the flight
crew. The aft set are the maintenance interphone jacks which are used by technicians.
Figure 2-16. Communication Jacks
TM-3-B 737-IOS1-007
INTERIOR CONTROLS AND INDICATORS
FSI-SSD
2-16
Operation (NT IOS)
B 737
JAN 2001