Genuine Original RAD Data Communications DXC-30 Multiservice Access Nodes Modular System Base Unit 7720000000-A. DXC-30 is a family of highly versatile, user-configurable multiservice access nodes with SNMP management, which provide the following main classes of services: Non-blocking DS0 cross-connect services for T1, E1 (frame and unframed), n×56/n×64 kbps and ISDN BRI services. E3 and T3 multiplexing services. Inverse multiplexing capabilities: DXC systems with an inverse multiplexing subsystem support transparent transmission of high-speed data over up to eight E1 or T1 links. DXC equipment is built to meet the stringent reliability and safety requirements of telecom operators, and some versions have already been qualified to NEBS Level 3. DXC’s are modular systems that can be equipped with various types of modules, to provide the required services and interfaces for various types of equipment. The various chassis versions offered in the DXC family meet a wide range of system requirements, including redundancy for enhanced system availability, yet maintain the same common set of advanced features.
Model Number: RAD DXC-30
Part Number: 7720000000-A
Specifications:
| Applicable Standards | AT&T TR-62411, ANSI T1.403
ITU-T Rec. G.703, G.704 |
| Framing | D4 (SF), ESF, unframed |
| Nominal Line Data Rate | 1.544 Mbps |
| Line Code | AMI |
| Zero Suppression | Transparent (no zero suppression)
B7ZS
B8ZS The desired mode is software-selectable |
| Impedance | 100Ω, balanced |
| Connector | RJ-45, 25-pin (D8T1) |
| Nominal Level | ±3V ± 10% |
| Levels with CSU | 0 dB, -7.5 dB, -15 dB, -22.5 dB, software-selectable |
| Levels without CSU | Software-adjustable to be measured at 0 to 655 ft |
| Receive Levels | 0 to -36 dB with CSU
0 to -10 dB without CSU |
| Jitter Performance | Per AT&T TR-62411 |
| Applicable Standards | ITU-T Rec. G.703, G.704, G.732 |
| With CRC-4 | Timeslot 0 multiframe for CRC-4 protection, and 16-frame multiframe managed by means of timeslot 16 (G.732S) for use of CAS
Timeslot 0 multiframe for CRC-4 protection, and no multiframe (G.732N), intended for use with CCS |
| Without CRC-4 | 16-frame multiframe managed by means of timeslot 16 (G.732S) for use of CAS
No multiframe (G.732N), intended for use with CCS
Unframed as per G.703 |
| Nominal Line Data Rate | 2.048 Mbps |
| Line Code | HDB3 |
| Line Impedance | Selectable by jumpers
120Ω, balanced
75Ω, unbalanced |
| Nominal Levels | Balanced interface: ±3V ±10%
Unbalanced interface: ±2.37V ±10% |
| Receive Levels | 0 to -36 dB with LTU
0 to -10 dB without LTU |
