IDM RG2000-R SIP Wireless Radio Gateway

IDM RG2000-R SIP Wireless Radio Gateway

I       Overview

The IDM RG2000-R SIP Wireless Radio Gateway supports up to three base radios. Each radio has a fixed SIP protocol voice channel connected to the dispatch console for dedicated hotline use, with 1 to 2 additional SIP voice channels available for switching to any radio as needed. When a base radio has multiple voice channels, the radio and these channels form a voice conference room.

The gateway supports specifying a radio's operating frequency from the dispatch console. This frequency is transmitted using the standard MQTT IoT protocol, allowing for voice or digital commands to change the radio's channel frequency.

The trunked dispatch gateway registers with both SIP voice dispatch servers and IoT communication servers. It supports SIP soft-switch protocol and IoT MQTT protocol, with MQTT supporting PTT command transmission, serial radio frequency management, and radio power settings.

The dispatch console interface displays the station name, radio usage name, radio model, radio frequency, and the SIP hotline phone number. The console icons also show the radio's send/receive status and audio status on the SIP hotline.

The IDM RG2000-R SIP Wireless Radio Gateway provides audio interfaces for three VHF radios and serial interfaces for radio parameter control. It supports five SIP phone links that can connect to other SIP terminals via the dispatch server. Each radio has a dedicated voice conference room, allowing up to 6 parties, meaning one radio can simultaneously accommodate 5 SIP phone clients talking online.

II       Structural Description

Figure 1. Front Panel of IDM RG2000-R

Figure 2. Rear Panel of IDM RG2000-R

III       Panel Interfaces

u       Power Interface: Power input of 220V;

u       Management Interface: RJ45 interface;

u       Radio Interfaces: RJ45 interfaces (1–3);

u       Phone Interfaces: RJ45 interface;

u       Network Interfaces: NET1–NET2;

u  The device's LED indicators provide status alerts, allowing users to easily determine whether the device is functioning normally or in an alert state. The LED indicators are defined as follows:

Table 1. IDM RG2000-R LED Indicator Descriptions

IV       Dimensions

Uses a 19-inch standard 1U rack mount with the following dimensions:170 × 437.6 × 44 mm.

V       Interface Characteristics

5.1       Radio Audio Interface Features

u       Audio Interfaces Provided: 3 radio audio interfaces;

u       Coupling Method: Transformer coupling, strong anti-interference capability;

u       Audio Input/Output Impedance: 600Ω;

u       Audio Gain Adjustment: Default 0dB for both sending and receiving;

u       Interface Type: Balanced input, can also be connected as unbalanced (one end grounded), input impedance 600Ω.

5.2       Phone Trunk Interface Features

u       Trunk Interfaces Provided: 2 FXO trunk phone interfaces;

u       Coupling Method: Transformer coupling, strong anti-interference capability;

u    Interface Impedance: 200Ω + 680Ω//0.1μF three-component impedance (600Ω pure resistance available upon request).

5.3       Ethernet Electrical Interface

u       Type: 10/100BASE-T, full-duplex, half-duplex, adaptive;

u       Compliance: IEEE 802.3, 802.1P, 802.1Q;

u       Connector: RJ45 (100M Cat5 cable, twisted pair).

5.4       Ethernet Optical Interface

u       Type: 10/100BASE-FX;

u       Compliance: IEEE 802.3, 802.1P, 802.1Q;

u       Connector: FS;

u       Transmit Power: ≥-5dBm, Sensitivity: ≤-35dBm;

u       Wavelength: 1310/1550nm, Transmission Distance: 10km, 40km, up to 120km.

5.5       Control Interface

u       Type: Asynchronous interface, 8 data bits, 1 stop bit, no parity;

u       Baud Rate: 57600;

u       Radio Protocol Learning Function:

n       Learns commands for adjusting radio transmit power;

n       Learns commands for changing transmit and receive frequencies;

n       Learns commands for controlling radio antenna direction.