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GTR64 http://www.matrix.es/GTR64
1.4.4 Data
The wireless modem supports the following data protocols:
• GPRS (General Packet Radio Service)
The wireless modem is a Class B terminal. The wireless modem is GPRS multi-slot class10 (4+2)
enabled, capable of receiving at a maximum of four timeslots per frame (down link), and transmitting
in two timeslots per frame (up link). See section 1.4.5 for multi-slot allocation by class.
• CSD (Circuit Switched Data)
The GR64 wireless modem is capable of establishing a CSD communication at 9.6 kbps over the air.
1.4.5 GPRS Multi-Slot Support
GSM Multi-slot classes supported by Gx64 devices
Maximum slot allocation
Multislot
Class
Downlink Uplink Active
Allowable
Configuration
Max data rate
8-12Kbps Send
8 4 1 5 1 up; 4 down
32-48Kbps Receive
8-12Kbps Send
1 up; 4 down
32-48Kbps Receive
16-24Kbps Send
10 4 2 5
2 up; 3 down
24-36Kbps Receive
1.4.6 SIM Card
The GTR64 supports an external SIM card through the integrated SIM holder. Both 3V and 1.8V SIM
technology is supported. Older, 5V SIM technology is not supported.
1.4.7 Power Consumption
Feature
Sleep Mode
DRX 8
Idle Mode
Transmit
Operation
GSM850 & E-GSM900
Voice/CSD
Data (GPRS)
1.6 mA 17 mA 2000 mA
GSM1800 & GSM1900
Voice/CSD
Data (GPRS)
1.6 mA
16 mA
1450 mA
The power consumption figures shown represent typical average current for maximum transmitted power,
single uplink (transmit) slot, and single downlink (receive) slot. The module will consume more average power
in different multi-slot configurations, the worst case being that of two uplink and three downlink slots.
1.5 Precautions
The GTR64 as a standalone item is designed for indoor use only. To use outdoors it must be integrated
into a weatherproof enclosure. Do not exceed the environmental and electrical limits as specified in
“Technical Data”, page 32.
GTR64 Integrators Manual V.1.2 Pag. 10
Preliminary. Subject to change without prior notice