Interfaces
* 96-pin DIN 41612 backplane connector
* Service & Maintenance Port: USB mini-B
* TNC 'RX/TX' Wireless Interface
* 5 LED Status Indicators
* Micro 3.0V/1.8V SIM Reader
* Status Indicators: Power, Network, Field, SIM, GPRS
System/Standards
* Supports multiple regions, including China, Europe, India, and Australia GSM-R frequency bands
* Supports Chinese Railway CIR 2.0 and 3.0 standards
* GSM Phase 2 / Phase 2+
* GPRS multi-slot class 8 (8 slots), class 10 (2 uplink)
* Mobile Station Class B supported
* Output Power: 1W @ 900 MHz, 1W @ 1800 MHz
* AT command control via RS232 or USB interface
Voice Standards
* 3 Codec Options: HR, FR, EFR
* Non-ASCII Applications: Supports AMR
Data Services
* GPRS Class 8 (8 slots), Class 10 (2 uplink)
* Supports PBCCH
* Coding Schemes: CS1–CS4
* CSD Data Transmission: Transparent and Non-transparent Modes
* Built-in PPP Protocol for GPRS Data Transmission
* Fax: Group 3, Class 2
* Supported Network Protocols: TCP, UDP, HTTP, FTP, SMTP, POP3
Supplementary Services
* Calling Line Identification Presentation (CLIP) and Connected Line Identification Presentation (COLP)
* Call Forwarding (CF), Call Waiting (CW), Call Hold (HOLD)
* Multiparty (MPTY), Call Barring
* Non-standard Value-Added Services (USSD)
* User-to-User Signaling Type 1 (UUS1)
* Enhanced Multi-Level Precedence and Preemption (eMLPP)
* Closed User Group (CUG)
Railway Group Communication Functions
* VGCS (Voice Group Call Service)
* VBS (Voice Broadcast Service)
* eMLPP (Enhanced Multi-Level Precedence and Preemption)
* Supports FN (Functional Number)
* Supports PFN (Presentation Functional Number)
* REC (Railway Emergency Call)