AT Command Reference Guide for EDGE Wireless ... - wless.ru
AT Command Reference Guide for EDGE Wireless ... - wless.ru
AT Command Reference Guide for EDGE Wireless ... - wless.ru
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Chapter 18 – Hardware-Related <strong>Command</strong>s<br />
LED Behavior ME operating status if <strong>AT</strong>^SSYNC=1 ME operating status if <strong>AT</strong>^SSYNC=2<br />
500 ms on / 25 ms off Packet switched data transfer in Same as <strong>for</strong> <strong>AT</strong>^SSYNC=1<br />
progress.<br />
Permanently on Depending on type of call:<br />
Same as <strong>for</strong> <strong>AT</strong>^SSYNC=1<br />
Voice call: Connected to remote party.<br />
Data call: Connected to remote party or<br />
exchange of parameters while setting<br />
up or disconnecting a call.<br />
This applies no matter whether the ME<br />
works at full functionality level<br />
<strong>AT</strong>+CFUN=1 or in one of the CYCLIC<br />
SLEEP modes where it wakes up only<br />
temporarily to make the call.<br />
n *600 ms on /n *600<br />
ms off<br />
Not possible: With <strong>AT</strong>^SSYNC=1, LED<br />
signal is disabled in SLEEP mode.<br />
SLEEP mode is activated (<strong>AT</strong>+CFUN<br />
parameter ≠ 1), but the ME is<br />
not registered to the GSM network<br />
(e.g., SIM not inserted or PIN not<br />
entered, and there<strong>for</strong>e, either no<br />
network service or only Limited<br />
n * 75 ms on / n * 3 ms<br />
off<br />
n * 500 ms on / n * 25<br />
ms off<br />
Not possible: With <strong>AT</strong>^SSYNC=1, LED<br />
signalization is disabled in SLEEP<br />
mode.<br />
Not possible: With <strong>AT</strong>^SSYNC=1, LED<br />
signalization is disabled in SLEEP<br />
mode.<br />
Network Service is available.<br />
SLEEP mode is activated (<strong>AT</strong>+CFUN<br />
parameter ≠ 1) while the ME is<br />
registered to the GSM network.<br />
SLEEP mode is activated (<strong>AT</strong>+CFUN<br />
parameter ≠ 1) while the ME is<br />
registered to the GSM network.<br />
Additionally, PDP context is activated.<br />
Note: When the ME is in Limited Service or IDLE mode with/without PDP context activated, the on/off time ratio<br />
of the LED is always the same, no matter whether or not power saving is enabled. The only difference is that in<br />
SLEEP mode the duration of the on/off periods is a multiple n of the equivalent periods without SLEEP mode.<br />
The multiple n is synchronous to the active state of CTS during SLEEP mode (where CTS is set/reset every 0.9 -<br />
2.7 seconds). See also <strong>AT</strong>+CFUN <strong>for</strong> the timing of CTS.<br />
Multi-Tech Systems, Inc. <strong>AT</strong> <strong>Command</strong>s <strong>for</strong> <strong>EDGE</strong> Modems (S000371B) 231