High-stability RS485 repeater designed to extend communication distance and improve signal quality.
GS81 485

Key Features & Benefits

  • High-Speed 4G (LTE) Connectivity and Multi-Network Support
  • Industrial Interface Flexibility with Robust Protection
  • Comprehensive Embedded Protocols for M2M Applications
  • Wide Operating Temperature Range
  • Voice and Audio Communication Capabilities
  • Industrial Power Supply Flexibility and Efficiency
  • Durable Mechanical Design and Ease of Deployment
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PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series
EDS-2005-EL Overview

Introduction

The GS81-485 is a versatile and industrial-grade 4G modem designed for seamless integration into a wide range of systems. Its plug-and-play design, featuring a durable metallic enclosure and DIN rail mounting, simplifies deployment and reduces installation time. Engineered specifically with comprehensive band support for networks across India, the GSX1 provides a reliable communication link for legacy and modern equipment, ensuring that critical data is transmitted efficiently from the field to the control center.

This modem’s core capabilities are built on proven cellular technology and adherence to established GSM standards. It offers multi-band 4G LTE support, ensuring high-speed data transfer while maintaining backward compatibility with 2G networks. With flexible serial interface options, including RS232 and RS485, the GS81 can connect directly to a vast array of industrial controllers, meters, and sensors. These features make it an ideal solution for upgrading existing infrastructure or building new connected systems. The following sections explore the specific features that differentiate this modem in the market.

Standards & Bands
GSM Compliance: Phase 2/2+
Control: AT commands (GSM 07.07 and 07.05)
Coding Scheme: CS1 to CS4
Supported Bands (India Only): LTE FDD: B1/B3/B5/B8, LTE TDD: B38/B39/B40/B41, WCDMA: B1/B8, TD-SCDMA: B34/B39, CDMA: BC0, GSM: 900/1800MHz
Performance
RF Output Power: < 35 dBm
RF Sensitivity: < -110 dBm
Data Rates: LTE FDD: Max. 150Mbps (DL) / 50Mbps (UL), LTE TDD: Max. 130Mbps (DL) / 35 Mbps (UL) , DC-HSDPA: Max. 42 Mbps (DL), HSUPA: Max. 5.76 Mbps (DL) , WCDMA: Max. 384 Kbps (DL/UL), TD-SCDMA: Max. 4.2 Mbps (DL) / 2.2 Mbps (UL), EVDO: Max. 3.1 Mbps (DL) / 1.8 Mbps (UL), 1x Advanced: Max. 307.2 Kbps (DL/UL), EDGE: Max. 296 Kbps (DL) / 236.8 Kbps (UL), GPRS: Max. 107Kbps (DL) / 85.6 Kbps (UL), CSD: Up to 14.4kbps
Interface
Serial Ports: RS232 (DB9 Female connector) or RS485 (3 pin Screw type Terminal block)<
Port Protection: 15KV ESD protection
Voice: Tricodec, Half rate (HR), Full rate (FR), Enhanced Full rate (EFR), Hands-free operation
(Echo suppression), AMR Audio: Analog Audio Interface (Optional)
Indicator
LED Display: Network status, Power ON, Tx, Rx
Electrical
Power Supply: 24V DC (Range: 9 to 36V DC) via 3 pin screw terminal (3.81mm pitch)
Power Consumption: 0.8W @24V DC (Network registered, no communication), 1.6W @24V DC (During data/voice mode)
Physical Characteristics
Enclosure: Metallic Enclosure with DIN rail mounting
Dimensions: 94 x 80 x 34 mm (enclosure only)
Antenna Connector: 50Ω SMA Female Connector
SIM Card Holder: Push Type, supports UIM/SIM 1.8V/3V
Environment
Operating Temperature: -20°C to 70°C
Storage Temperature: -40°C to 85°C
Relative Humidity: up to 95% Rh (non-condensing)
Compliance: Designed to meet various EMI/EMC standards
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Support Documents

NAME TYPE VERSION RELEASE DATE
Datasheet for EDS-2005-EL Series
917.7 KB
Datasheet v2.0 May 15, 2024
2D CAD for EDS-2005-EL Series
314.0 KB
2D CAD Apr 16, 2024
Declaration of Conformity (EU/UK) for EDS-2005/2008 Series
311.3 KB
Declaration v1.0 Feb 05, 2024
Categories Single mode Multi mode ST Connectors SC Connectors AC Power Supply DC Power Supply Download
SC10E16AM S NI U DC

SAN TELEQUIP

Over the last three decades, SAN Telequip has evolved from process control and security surveillance solutions to advanced VPN Routers, Managed Industrial Ethernet Switches, and IIoT Gateways etc. Today, we serve diverse sectors including Building Automation, Oil & Gas, Telecom, Power & Energy, Renewables, Metro & Rail, ATMS/TMS, Data Centers, Mining, Healthcare, Infrastructure, and Industrial Automation. We design and manufacture rugged, high-reliability devices that connect systems, processes, and people in mission-critical environments. Driven by strong in-house R&D, we are advancing in Edge Computing, Secure Industrial Networking, TSN, Cybersecurity, 5G Technology and Cloud Connectivity – delivering future-ready solutions for next-generation infrastructure and Industrial Networks.

Phone

Location

Deron Heights, Office No.504 & 505, 5th Floor,
S. No. 270/1/23, Baner Road,
Opp. Mahabaleshwar Hotel, Baner, Pune – 411045

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