| BRI Interfaces | 3 (S and U [2BIQ] selectable in software menu) |
| PRI Interfaces | 2 (E1/T1 software selectable) |
| BRI Interface Power | 40V @ 1W Normal and Restricted on BRI-S 88V @ 5W Normal and Sealing on BRI-U |
| LAN | Ethernet 10BaseT, RJ45 |
| Internal Modem | V.34 modem (optional), RJ11 |
| Parallel Monitoring | Available on BRI S interfaces |
| X.21 Data Port | 2 64K-1920K DCE for external equipment access to B channels |
| Semi-Permanent Connection | Semi-permanent/nailed-up connection on BRI/PRI B channels |
| B Channels | 2 per BRI, 6-30 per PRI E1 and 6-23 per PRI T1 |
| Clock Synchronisation | 1 master Emutel™ |Duo can drive up to 3 slave Emutel™ |Duos to lock ISDN clocks |
| Display Indicators | P (physical), D (datalink), and B (B channel) per interface |
| Protocol Analyser | Layer 1, 2, and 3 can be analysed for both ISDN and X.25: Configuration for all networks irrespective of networks simulated |
| Network Variants | ITU*, BTNR191 (UK), VN2/3 (France), 1TR6 (Germany), Euro-ISDN (Europe), NAT-1/DMS100/5ESS (North America) and NTT (Japan) - supported by PCMCIA plug-in personality cards |
| D Channel Packet | X.25 on BRI1/BRI2, 100 logical calls in DCE mode |
| User Interface | Windows application or VT100 Terminal (V.24 Interface DB9 connection) |
| Directory Numbering BRI | Two numbers per interface normal, ten numbers per interface if using DDI/MSN and one number per interface for auxiliary working |
| Directory Numbering PRI | Thirty numbers per interface normal, one hundred numbers per interface if using DDI/MSN and one number per interface for auxiliary working |
| Supplementary Service Support | Various depending on network simulated |
| Test Tones | Dial, Busy, Error, Ringing and Selected Tones 300Hz - 3400Hz, +3dBm to -26dBm |
| Power Requirements | 80-260 Vac, 40W |
| Environmental | 0-50°C, 10-80% Humidity (Non Condensing) |
| Weight | 2.5 Kg |
| Size | 8cm(h) x 36cm(w) x 32cm(d) |
| Warranty | Emutel™ | Duo is supplied with one year's product warranty |
Price and availability of Emutel™ | Symphony can be requested by contacting the Arcatech.
