- Allows devices such as routers to connect to telecom networks through E1 interface
- Two base models -- CYGNUS 803 supports connection to both framed and unframed E1 links, while CYGNUS 803L supports connection to only unframed E1 links
- E1 interface complies with ITU-T Recommendations G.703 and G.704
- Frame types selectable between PCM 30 and PCM 31, with and without CRC-4
- Menu driven supervisory software (accessible from a RS232 compatible console port) for configuration, monitoring and statistics reporting
- Built-in pattern generator and checker for qualitative and quantitative error performance monitoring of the E1 interface
- Front panel indicators for displaying unit status
- Can connect multiple DTEs to a single E1 link by cascading a number of CYGNUS 803 units.
- LCD/keypad for selecting operating parameters
- Optional buzzer which sounds on the failure of the E1 link
- Ordering time options for both CYGNUS 803 and CYGNUS 803L:
- DTE interface: V.35 (standard) or V.11
- Operating power supply: AC (85 to 264 V) (standard), DC (-36 to -76 V), or both
- E1 interface: 120 ohm balanced (standard), 75 ohm unbalanced or both
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