MTCMR-H4-P1-NAM Multi-Tech Systems, MTCMR-H4-P1-NAM Datasheet - Page 136

• Manufacturer Part Number: MTCMR-H4-P1-NAM
• Description: MODEM CELLULAR QUAD GPRS HSPA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-H4-P1-NAM

• Function: Transceiver, HSPA, Modem
• Modulation Or Protocol: GPRS, GSM, EDGE
• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Data Rate - Maximum: 7.2 Mbps
• Features: US Power Cord
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1123

+CSQ Signal Quality
+CSSN Supplementary Service Notifications
High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A)
Description:
Syntax:
Values:
Parameter Storage:
Examples:
Description:
Syntax:
Values:
This command is used to read the received signal strength indication (<rssi>) and the
channel bit error rate (<ber>) with or without a SIM card inserted.
No Read and Test Commands
<ber>:
This command configures the supplementary service related network initiated notifications.
Intermediated Response: +CSSI: <code1>[,<index>]
Unsolicited Response: +CSSU: <code2>[,<index>[,<number>,<type>] ]
<m>
<rssi>:
<n>
Command
Action Command:
AT+CSQ
Command
AT+CSQ
Command
Action Command:
AT+CSSN= <n>, <m>
Read Command:
AT+CSSN?
Test Command:
AT+CSSN=?
0
1
2 to 30
31
99
0…7
99
None
MO Supplementary Service Notification
0
1
MO Supplementary Service Notification
0
1
Received Signal Strength
-113 dBm or less
-111 dBm
-109 to -53 dBm
-51dBm or greater
not known or not detectable
Channel Bit Error Rate
as RXQUAL values (GSM 05.08 [10])
not known or not detectable
Responses
+CSQ: 17,1
OK
Disable. Default
Enable
When a supplementary service notification is received after a mobile
originated call setup, intermediate result code +CSSI is sent before any
other MO call setup result codes.
Disable
Enable
When a supplementary service notification is received during a call,
unsolicited result code +CSSU is sent.
Responses
+CSQ: <rssi>,<ber>
OK
+CSSN: <n>,<m>
OK
+CSSN: (list of supported <n>s), (list of supported <m>s)
OK
Response
OK
Chapter 3 – Supported GSM/WCDMA AT Commands
136