TB 9-6625-2309-35
12. Time
Insertion Delay
Characterization
NOTE
Steps which follow assume TD-260 optical module is presently
installed in TI. Technique of paragraph 12 also applies to TD-
261C and TD-285C optical modules. If removal of optical
performed to ensure proper sync.
FIBER OPTIC
TEST BOX
Figure 18. Equipment setup with fiber optic test box used to
establish reference cursor position.
b. To change length and resolution perform steps (1) through (8) below:
(1) Press TI HELP pushbutton as required to change to Help Facility screen.
(2) Press MORE softkey.
(3) Press INSTRUMENT SETUP softkey.
(4) Press OTDR SETUP softkey.
(5) Press FIBER LEN/RES softkey.
(6) Adjust CURSOR A control to set new length to 8 km and resolution to 0.5 m.