help • App. N: Approvals, Codes, Data Sheets • ISDN Card SX2 DualPRI
N.4 ISDN Card SX2 DualPRI
SX2 DualPRI ISDN Interface
*2 x PRI 2m-interface
*Each line can be configured individually using a jumper field for the TE or NT mode.
*Line termination (120Ohm or 75Ohm) is adjustable for each connection individually via a DIP switch.
*Failover relay on the SX2 DualPRI. This enables the two lines to be directly connected to each other in the event of power failure or software problems, so that a PRI external line can be looped through the card.
*A maximum of 4 different cards (SX2 QuadBRI, SX2 SinglePRIand SX2 DualPRI) can be used in one computer. In doing so, a maximum of 76 B channels will be supported. Please note that the SX2 DualPRI is counted as two cards because it will appear as two network cards in the Windows device manager.
PCI Interface
PCI Interface for 3.3V and 5V PCI 2.2 slots. If necessary, 5V is reduced to 3.3V using a voltage regulator located on the card.
PCM Highway
*Tact synchronization between the different SX2 cards is possible. The cards are connected with a ribbon cable.
*2/4/8 Mbit/s data transfer rate
*Chipset: Cologne Chip HFC-E1 Chip
*Exact 32,768 MHz quartz oscillator
*512x8bit serial EEPROM for programming the PCI configuration information
General purpose I/O
*Four LEDs (red/green) on the mounting bracket of the ISDN card per PRI interface
*Four DIP switches per PRI interface that can be used for the identification of the card
*You will find more recent drivers for the SX2 in the download area of the homepage: