1A4B02F DIGIUM 4 Port modular Analog X1 card at discount

1A4B02F Specifications

Digium A4B 4‑Port Analog Voice Board

Manufacturer: Digium (now part of Sangoma Technologies)
Manufacturer Model: 1A4B02F
Product Line: A4 Series
Product Series: A4B
Product Type: Analog Telephony Voice Interface Card
Product Name: Digium A4B 4‑Port Analog Voice Board

KEY FEATURES:

Host Interface: PCI Express (PCIe) x1

Number of FXO Ports: 4 × FXO RJ‑11 analog trunk interfaces

Designed for connecting analog PSTN lines to telephony systems

Compatible with open‑source telephony platforms (e.g., Asterisk/DAHDI)

Ideal for IP PBX, VoIP gateway, and analog trunk integration

PERFORMANCE:

Analog Telephony Support: 4 FXO channels for PSTN trunk interfaces

Signal Types: Loop start analog signaling

Echo Cancellation: Optional DSP‑based echo cancellation support

ENVIRONMENTAL & RELIABILITY:

Enterprise telephony grade hardware for PBX/VoIP systems

Typical operating environment: server/PC platform with PCIe slot

PHYSICAL:

Form Factor: PCI Express plug‑in card

Height: ~2.48″ (63 mm)

Width: ~6.30″ (160 mm)

COMPATIBILITY:

Host System: PCIe‑equipped servers and workstations

Telephony Systems: Works with Asterisk/DAHDI and Switchvox PBX environment