1-port RS-232/422/485 to GPRS IP Gateway
  • Universal quad-band GSM/GPRS 850/900/1800/1900 MHz
  • Dual SIM for telecom redundancy
  • Support SDHC SD Card for Data Buffering
  • Connect Ethernet and Serial Devices over VPN
  • Various operation modes: COM port redirector, RVCOM, TCP, UDP, SMS tunnel, and pair connection
  • Any baud rate setting for easy configuration
  • Supports Universal quad-band GSM/GPRS 850/900/1800/1900 MHz
  • Built-in 15 KV ESD protection for all serial signals
  • 1.5 KV isolation protection
  • 2 digital inputs
  • Multiple configuration methods: Windows utility, Telnet, and Web console
  • Supports 32-bit/64-bit Windows 2000/XP/Vista/7, Windows Server 2003/2008, Windows CE 5.0, and Linux
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EKI-1321 and EKI-1322 cellular gateways can transparently bring RS-232/422/485 or Ethernet devices to a cellular network. They allow nearly any device with serial or Ethernet ports to connect and share a cellular network with easy and simple configuration. EKI-1321 and EKI-1322 GPRS IP Gateway’s are compact, and can be DIN-rail or wall mounted and with both front panel and side panel LED displays for easy identification. They come with dual DC power input from 12 to 48 VDC and have 2 KV EFT/Surge protection to prevent damage from various type of power resources. The serial ports are also protected by 15 KV ESD line protection to keep your system safe from unexpected electrical discharges. Both models support dual SIM slots to support GPRS signal redundancy to switch to an available channel automatically while the existing one is disconnected, and SD card slot for data buffering to prevent loss of serial data while the communication is interrupted.



Cellular InterfaceBand OptionQuad-band 850/900 and 1800/1900 MHz
GPRS Coding SchemesCS1 ~ CS4
GPRS Multi-SlotClass 10
GPRS Terminal DeviceClass B
No. of SIM2
SIM Control3 V
Tx Power1 W for GSM 1800/1900, 2 W for EGSM 850/900
Digital InputChannels2
Input LevelLogic level 0: 1 V Maximum, Logic level 1: 3 ~ 30 V
EnvironmentOperating Humidity5 ~ 95% RH
Operating Temperature-30 ~ 65°C (-22 ~ 149°F)
Storage Temperature-40 ~ 75°C (-40 ~ 167°F)
GeneralLED IndicatorsSystem: Power, System Status, GPRS: Quality, GPRS ready; Serial: Tx, Rx
Reboot TriggerBuilt-in WDT (watchdog timer)
LAN InterfaceConnectorRJ45
Ethernet10/100 Mbps, auto MDI/MDIX
Protection1.5 KV built-in magnetic isolation protection
MechanicsDimensions (W x H x D)27 x 120 x 85 mm (1.06″ x 4.72″ x 3.35″)
EnclosureMetal with solid mounting hardware
MountingDIN-rail, Wall
Weight0.49 Kg
Power RequirementsPower ConnectorTerminal block
Power Consumption8W
Power EFT/Surge Prot.2 KV
Power Input12 ~ 48 VDC, redundant dual inputs
Relay OutputChannels1
Contact Rating0.5 A @ 120 VAC
Relay off Time(Typ.)4 ms
Relay on Time(Typ.)3 ms
Serial CommunicationBaud Rate75 bps to 921.6 kbps, any baud rate setting
Data Bits5, 6, 7, 8
No. of Ports1, 2 KV isolation protection
ParityNone, Odd, Even, Space, Mark
Port ConnectorDB9 male
Port TypeRS-232/422/485, software selectable
Protection15 KV ESD for all signals
Serial SignalsRS-232: TxD, RxD, CTS, RTS, DTR, DSR, DCD, RI, GND, RS-422: TxD+, TxD-, RxD+, RxD-, GND, RS-485: Data+, Data-, GND
Stop Bits1, 1.5, 2
SoftwareConfigurationWindows utility, Telnet console, Web Browser
Driver Support32-bit/64-bit Windows 2000/XP/Vista/7, Windows Server 2003/2008, Windows CE 5.0, and Linux
Operation ModesVirtual COM, Reverse Virtual COM, TCP/UDP server mode, TCP/UDP client mode, Pair connection mode (Serial Tunnel), RFC2217, SMS Tunnel, IP Gateway w/ VPN
Router/FirewallNAT, port forwarding
Utility SoftwareAdvantech Serial Device Server Configuration Utility
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