Digium Eight (8) Span Digital - T1/E1/J1/PRI - PCI Express x1 - Hardware Echo Cancellation

Digium’s TE820 Octal-Span digital card is built exclusively for high-density Asterisk® applications that require high-performance, cost effective digital connectivity. The TE820 includes eight independently software-selectable digital telephony interfaces, supporting up to 192 channels (in T1/J1 mode) or 240 channels (in E1 mode) — the highest single-card port density available for use with Asterisk. The TE820 seamlessly interconnects traditional telephony systems with Voice over IP (VoIP) technologies at the lowest per-port price on the market today.

• 8 T1 / E1 Spans
• Up to 240 concurrent calls per card
• Optional hardware echo cancellation module
• PCI Express form factor

Digium Wildcard TE820 PCI Express ISDN PRI Card with Echo Cancellation (1TE820BF)

The Digium Wildcard TE820 PCI Express ISDN PRI Card with Echo Cancellation (1TE820BF) is built exclusivelyfor high-density Asterisk® applications that require high-performance, cost effective digital connectivity.

The Digium Wildcard TE820 PCI Express ISDN PRI Card with Echo Cancellation (1TE820BF) includes eight independently software-selectable digital telephony interfaces, supporting up to 192 channels (in T1/J1 mode) or 240 channels (in E1 mode) — the highest single-card port density avail-able for use with Asterisk. The TE820 seamlessly interconnects traditional telephony systems with Voice over IP (VoIP) technologies at the lowest per-port price on the market today.

Digium Wildcard TE820 PCI Express ISDN PRI Card with Echo Cancellation (1TE820BF) Features

• Up To Eight (8) T1, E1 or J1 interfaces*
• Up to 192 (T1/J1) or 240 (E1) simultaneous calls
• Interfaces are software selectable (T1, E1  or J1 Mode)
• Half-length, full-height PCI-Express card
• Optional 128ms hardware echo   cancellation module
• *4 RJ-45 connectors, each supporting two  circuits. Break-out dongles are included.

Target Applications

• Enterprise Phone Systems
• Enterprise IVR Servers
• High-density VoIP gateway systems
• High-density conferencing systems
• Carrier media server platforms

Framing Types

• Superframe (D4)
• Extended Superframe (ESF)
• Channel Associated Signaling (CAS)
• Common Channel Signaling (CCS)

Coding Types

• Alternative Mark Inversion (AMI)
• Bipolar with Eight (8) Zero Substitution (B8ZS)
• High Density Bipolar Order Three (HDB3) 
• with optional CRC4

PRI Switch Compatibility

• EuroISDN (PRI or PRA) — Q.931/Q.921
• AT&T 4ESS Network or CPE
• DMS 100 National ISDN 2
• Lucent 5E CAS Voice Modes