Description
The B2 Module is a module with 2 BRI Ports, and each BRI
port supports 2 BRI channel
Yeastar B2 Module – 2 BRI Ports
General
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Module type: BRI (ISDN Basic Rate Interface)
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Number of BRI ports: 2
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Each BRI port configurable as NT or TE mode
Channels
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Each BRI port provides:
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2 bearer (B) channels at 64 kbit/s each (for voice or data)
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1 data (D) channel at 16 kbit/s (for signalling / control / data)
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Total simultaneous B‑channels per module: 4 (2 per port × 2 ports)
Connectors
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Connector type: RJ‑11 (4‑pin) or RJ‑12 (6‑pin), depending on PBX interface
Compatibility
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Compatible with Yeastar S-Series and P-Series PBX systems (e.g., P550, P560, P570), subject to available module slots and expansion board limits
