Specifications

Table Of Contents
Cinterion
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ALAS5V Hardware Interface Description
4.2 Power Up/Power Down Scenarios
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ALAS5V_HID_v00.030a 2019-03-20
Confidential / Preliminary
Page 80 of 124
4.2.4.2 Deferred Shutdown at Extreme Temperature Conditions
In the following cases, automatic shutdown will be deferred if a critical temperature limit is ex-
ceeded:
While an emergency call is in progress.
During a two minute guard period after power-up. This guard period has been introduced in
order to allow for the user to make an emergency call. The start of any one of these calls
extends the guard period until the end of the call. Any other network activity may be termi-
nated by shutdown upon expiry of the guard time.
While in a "deferred shutdown" situation, ALAS5V continues to measure the temperature and
to deliver alert messages, but deactivates the shutdown functionality. Once the 2 minute guard
period is expired or the call is terminated, full temperature control will be resumed. If the tem-
perature is still out of range, ALAS5V switches off immediately (without another alert message).
Caution: Automatic shutdown is a safety feature intended to prevent damage to the module.
Extended usage of the deferred shutdown facilities provided may result in damage to the mod-
ule, and possibly other severe consequences.