CTD-N Technical Manual
page 16
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Figure 7.
CTD-N Setup—with RS-232 Interface
Using the CTD-N End Cap Switch
In a standard CTD-N, the battery is always powered. The CTD-N Battery Switch End cap allows the
user to manually remove power when the unit is in between uses. This switch can only be used in
the following modes; Auto Logging on power up, Battery End cap Enabled interval, or Battery End
cap Enabled – Delayed Start interval.
NOTE.
The battery must always be removed whenever the unit is being shipped or stored for long
periods.
The CTD-N End Cap Switch disconnects the battery without the need to open the unit. A special 6-
pin battery power-shorting plug is provided to apply power to the CTD-N. Unplugging the shorting
plug disconnects the battery. An adaptor cable is supplied so that the standard test cable can still be
used.
Connecting a PC to the CTD-N with an End cap Switch
A NXIC CTD with an End cap Switch is shown set up with a laptop computer in Figure 8. To con-
nect a NXIC CTD with your computer, use the adaptor cable B176-207.
CAUTION.
The adaptor cable will use battery power when there is no external power supply.
