Yeastar EX08 Expansion Card with 4 Onboard Module Slots

Yeastar EX08 Card

The Yeastar EX08 Expansion Card is a specialized internal hardware component designed specifically for high-capacity S-Series VoIP PBX deployments. This daughterboard interfaces directly with the main processing unit of the S100 and S300 chassis to extend physical port density. By providing four dedicated module slots, it allows network administrators to populate the system with a variety of telephony interfaces based on site-specific requirements. Consequently, the hardware architecture remains modular and adaptable to changing telecommunication infrastructures.

Key Features

• Modular Interface Architecture
  This component supports the simultaneous integration of up to four distinct Yeastar modules for diverse connectivity.
• Wide Range Module Support
  • O2 Module (2 FXO ports for PSTN lines)
  • S2 Module (2 FXS ports for analog extensions)
  • SO Module (1 FXO and 1 FXS port for power failure bypass)
  • B2 Module (2 BRI ports for ISDN connectivity)
  • GSM/3G/4G Modules (Single cellular channel for mobile trunking)
• High Density Scalability
  The S100 PBX supports up to two of these cards, while the S300 accommodates three, allowing for significant port expansion.
• Secure Internal Mounting
  The hardware installs via standardized headers on the motherboard to ensure low-latency signal transmission and physical stability.

Specifications

What’s in the Box

• Yeastar EX08 Expansion Board
• Mounting Screws
• Installation Guide

Why Choose Yeastar EX08

• The hardware allows for granular control over telephony port configuration without replacing the entire PBX unit.
• It maintains low thermal output and high electrical efficiency within the chassis environment.
• Integration provides seamless software recognition within the Yeastar web interface for rapid port provisioning.
• Therefore, it represents a cost-effective path for upgrading legacy analog systems to hybrid VoIP environments.