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Digium Dual Span PRI Card

Digium offers yet another great device – a dual-span digital card that supports 48 (T1 / J1) or 60 (E1) connection ports to join them with the PSTN trunks with the help of 2 spans or digital circuits.

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The device, like others in Digium’s digital card series, provides exclusive connectivity to Asterisk-based systems. Without a doubt, this device is capable of providing the best digital connectivity. PCI and PCI-Express frame variables support dual digital circuit advanced cards. All Digium Octasic DSP-based reverberate cancellation modules can be connected to all double digital circuit models to provide viable equipment resound cancellation across all channels. Digium cards are compatible with all versions of Asterisk that use the DAHDI driver structure. The website provides no-cost access to the reference bullet and DAHDI. All cards come with a five-year warranty and are eligible for Digium’s Exceptional Satisfaction Program (ESP) risk-free Quality Guarantee. Digium Dual Span digital cards provide two T1 or E1 trunks for concurrent connection to Asterisk PBX systems. These digital cards also provide digital direct PSTN connectivity to support Asterisk system applications and connections. Furthermore, the system is capable of general recording arrangements as well as in-line call monitoring. The Digium Dual Span digital card provides high-quality telecommunication at a low cost. Without a doubt, this span card is well worth the money spent to ensure the best connectivity to Asterisk systems.

Features of  Digium Dual Span PRI Card

  • Up to 24 (T1/J1) or 30 (E1) concurrent calls per digital circuit (48 add up to T1/J1 and 60 add up to E1 calls per card).
  • Supports T1, E1, and J1 physical interface associations.
  • Optional 128ms equipment reverberate cancelation module.
  • Protocol bolster incorporates ISDN PRI, Robbed-Bit, CAS.
  • Industry-standard RJ-45 port.
  • Available in PCI and PCI Express shape variables.
  • 2 ports/2 ranges.
  • 5-year guarantee.
  • Digium ESP chance-free assurance.
  • Asterisk and DAHDI upheld (DAHDI 2.8 or later required for the TE235).
  • Asterisk and DAHDI upheld (DAHDI 2.10 or later required for the TE236).
  • Switchvox upheld (Switchvox 5.8.1 or later required for the TE235).
  • Switchvox does not bolster the TE236 card.

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Product Tags:

Product Specification


Digium Digital PCI/PCI-Express
1-8 Ports E1/T1/PRI Yes
32-bit 33MHz Yes
5 Year Warranty Yes
Built in Octasic DSP Echo Cancellation for the TE133 and TE134 Yes
Built-in CSU/DSU Yes
Optional Octasic DSP Echo Cancellation(2, 4, and 8 port models) Yes
RJ48C Ports Yes
RoHS Compliant Yes
Temperature: 0 to 50° C Yes
Coding Types
Alternative Mark Inversion (AMI) Yes
Bipolar with Eight (8) Zeros Substitution(B8ZS) Yes
High Density Bipolar of Order Three (3) Code(HDB3)* Yes
Framing Types
Channel Associated Signaling (CAS) Yes
Common Channel Signaling (CCS) Yes
Extended Superframe (ESF) Yes
Superframe (D4) Yes
PRI Network and CPE
EuroISDN Q.931 Yes
Lucent 5ESS Yes
National ISDN 1 (NI1) Yes
National ISDN 2 (NI2 Yes
Nortel DMS100 Yes
Primary Rate Interface (PRI) Switch Types Yes
Q.SIG (Limited Support) Yes
Signaling Types
E&M, E&M E1, E&M Wink Yes
Feature Group B Yes
Feature Group C-CAMA Yes
Feature Group C-CAMA (MF) Yes
Feature Group D (DTMF) Yes
Feature Group D (MF) Yes
Feature Group D (Tandem Access) Yes
Foreign Exchange Office (FXO) Loop Start, Yes
Foreign Exchange Station (FXS) Loop Start, Yes
Ground Start, Kewl Start Yes

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