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OnCell G2111/G2151i MOXA 1-port RS-232 or RS-232/422/485 Industrial GSM/GPRS modems

OnCell G2111/G2151i MOXA 1-port RS-232 or RS-232/422/485 Industrial GSM/GPRS modems
Brand: Moxa
Product Code: OnCell G2111/G2151i
Availability: In Stock

Features and Benefits 

  • Quad-band GSM/GPRS 850/900/1800/1900 MHz
  • Separate RS-232 and RS-422/485 serial interfaces (G2151I only)
  • 2.5 KV RMS isolation for 1 min. for all serial signals (G2151I only)
  • Extended operating temperature from -25 to 70°C (G2111-T only)
  • LED indicators for GSM/GPRS and data transmission status
  • DIN-Rail and wall mounting


The OnCell G2111/G2151I series of industrial quad-band GSM/GPRS modems are designed to transmit data and short messages (SMS) over GSM/GPRS mobile networks. The modems can be used to increase the efficiency of maintenance and communication, but do not require extensive training. In addition, the modems can be mounted on a DIN-Rail or wall. The OnCell G212111/G2151I series modems accept a 12 to 48 VDC power input, making them suitable for use with a variety of field power sources. The serial ports feature 15 KV ESD line protection to protect the products from harmful electrical discharge, and separate RS-232 and RS-422/485 interfaces are built into the OnCell G2151I, each with 2.5 KV RMS isolation protection for one minute. The two serial interfaces on the OnCell G2151I make it ideal for attaching all kinds of devices, such as stand-alone controllers, PC COM ports, and multi-dropped electric meters. In addition, the OnCell G2111-T has an extended operating temperature (-25 to 70°C) design that makes it suitable for heavy industrial use.

Cellular Interface
Standards GSM/GPRS
Band Options Quad-band 850/900/1800/1900 MHz
GPRS Multi-slot Class Class 10
GPRS Terminal Device Class Class B
GPRS Coding Schemes CS1 to CS4
CSD Data Transmission Rate Up to 14,400 bps
Tx Power 1 watt GSM 1800/1900, 2 watts EGSM 900/GSM 850
SIM Interface
Number of SIMs 1
(NOTE: This product does not include a SIM card.)
SIM Control 3 V
Serial Interface
Number of Ports 1
Serial Standards G2111: RS-232 (DB9 female connector)
G2111-T: RS-232 (DB9 female connector)
G2151I: RS-232 (DB9 female connector), RS-422/485 (5-pin terminal block connector)
ESD Protection 15 KV (G2111 only)
Optical Isolation 2.5 KV (G2151I only)
Serial Communication Parameters
Data Bits 8
Stop Bits 1
Parity None
Flow Control RTS/CTS
Baudrate 300 bps to 230.4 Kbps
Serial Signals
RS-422 Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w Data+, Data-, GND
Physical Characteristics
Housing ABS + PC, IP30 protected
Weight 150 ± 5 g
Dimensions 27 x 123 x 79 mm (1.06 x 4.84 x 3.11 in)
Environmental Limits
Operating Temperature OnCell G2111/G2151I: -20 to 55°C (-4 to 131°F)
OnCell G2111-T: -25 to 70°C (-22 to 158°F)
Storage Temperature -40 to 75°C (-40 to 167°F)
Ambient Relative Humidity 5 to 95% (30°C, non-condensing)
Power Requirements
Input Voltage 12 to 48 VDC
Power Consumption 12 to 48 VDC, 100 mA (idle), 625 mA (max.)
Standards and Certifications
Safety UL 60950-1
EMC EN 55022 Class A, EN 55024, FCC Part 15 Subpart B Class A
Radio FCC Part 22H, FCC Part 24E, EN 301 489-1, EN 301 489-7,
EN 301 511
MTBF (mean time between failures) OnCell G2111/G2111-T: 925,000 hrs
OnCell G2151I: 864,000 hrs