User`s guide

SkyTrac Systems Ltd.

Document Rev. 01.007 DOC0102 Page 18 of 23

Restricted Proprietary and Confidential Information

During ISAT emergency mode operation, the user will not be able to navigate the menu

system, key presses are ignored, and the Activity indicator signals an error when buttons

are pressed.

The ISAT does not allow voice calls or text messages to be sent while in ISAT emergency

mode. If the user is in a voice call when ISAT Emergency is triggered, the ISAT will end the

voice call in order to send emergency position reports.

Switching the ISAT back to Normal mode (Norm) ends the ISAT Emergency condition.

6 ACCESS CONTROL

Note: The following description is valid only if PIN feature is activated in the CDU-250

The CDU-250 supports restricted access to the calling and messaging features supported

by the ISAT by the use of a PIN number. PIN numbers can be used for the following

purposes:

1. To prevent unauthorized access of calling and text messaging

2. To determine or track the call usage (duration) of each CDU-250 user

PIN numbers are CDU specific. If multiple CDU’s are installed in the fleet and all require

access control, each CDU must be configured individually.

6.1 PIN Description

1. The CDU-250 supports a maximum of 400 distinct PINS – i.e. the CDU -250 will be

able to identify up to a maximum of 400 distinct users.

2. The PIN length can be 4, 5 or 6 digits. The length selected applies to all the PINS

used in the CDU-250.

3. For each PIN, an access level can be configured to:

• Enable/Disable incoming calls

• Enable/Disable outgoing calls

• Enable/Disable incoming emails

• Enable/Disable outgoing emails

• Enable/Disable outgoing text messages

4. When the PIN feature is activated, a default access level must be set for the CDU-

250. This default access level will be used if no PIN is entered in to the CDU-250 or

when an invalid PIN is entered to the CDU-250. For example, if the default access

level is set to disable outgoing calls and messaging, then a user cannot make an

outgoing call unless they enter a PIN with an access level to make outgoing calls.

This feature requires an ISAT-100 firmware revision 2.18 or later.