MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 107

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Cell Environment Description +CCED
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Chapter 13 – Specific AT
This command can be used by the application to retrieve the parameters of the main cell and of up to
six neighboring cells.
There are two possible methods for the external application to determine these cell parameters:
Automatic mode is not supported during registration.
<mode>
<requested dump>
<CsqStep> Indicates the step required for RSSI indications between 2 + CSQ unsolicited response.
The range of this step is [1,5]. Default value: 1. If this field is not indicated, the previous value is used.
Notes:
16
•
•
0
1
2
1
2
4
8
•
•
On request by the application
Automatically by the product every 5 seconds.
The response for the requested dump 1, 2, and 4 will be:
The response for the requested dump 8 will be a +CSQ response and not a +CCED. The 7.07
format for +CSQ is respected. The <ber> is not evaluated by this command, so the <ber> value
will always be 99.
Where <value> is the ASCII string of the values (in decimal form except the LAC and CI values
which are in hexadecimal form) of the parameters. If a field cannot be measured – or is
meaningless – the parameter is not filled in and two consecutive commas are sent.
When automatic shots are selected, this +CSQ response is sent every time the <rssi> measured
by the product is equal or greater than the value <CsqStep>. So the <rssi> level between 2
successive +CSQ responses is equal or greater than <CsqStep>. Automatic shots are supported
in idle mode and during communication. The activation or deactivation of this flow (8) does not
affect the other flows.
One shot requested
Automatic shots requested
Stop automatic shots
Main Cell:
•
•
Neighbor1 to Neighbor6:
•
•
Main Cell Timing Advance
Main cell RSSI indications (RxLev) in a range from 0 to 31
<requested dump>=1 + <requested dump>=2 + <requested dump>=4 + Neighbor1 to
Neighbor6 Timing Advance (only available for mode=0) Neighbor1 to Neighbor6 Timing
Advance are only available in Idle Mode.
If the Cell Identity is available
If the Cell Identity is not available
If the Cell Identity is available
If the Cell Identity is not available
MCC, MNC, LAC, CI, BSIC, BCCH Freq (absolute), RxLev, RxLev Full, RxLev Sub, RxQual,
RxQual Full, RxQual Sub,Idle TS
MCC, MNC, LAC, BSIC, BCCH Freq (absolute), RxLev, RxLev Full, RxLev Sub, RxQual,
RxQual Full, RxQual Sub,Idle TS
MCC, MNC, LAC, CI, BSIC, BCCH Freq (absolute), RxLev
MCC, MNC, LAC,, BSIC, BCCH Freq (absolute), RxLev
+CCED:<value>, … , <value n>
OK
+CSQ:<rssi>, 99
OK
Commands
Chapter 13 – Specific AT Commands
107