Data Sheet DXC Modules D4E1, D8E1 4/8-Port E1 Interface Modules 4- or 8-port E1 interface modules for the DXC family of modular digital • Four- or eight-port E1 interface modules for the DXC family cross-connect units • 256N or 256S multiframes, with or without CRC-4 protection, and unframed mode • Data rate up to 2.048 Mbps per port • Compliance with ITU-T Rec. G.703, G.704, G.706, G.732 and G.823 standards • Monitoring applications (such as SS7) enabled by increased E1 port sensitivity D4E1 and D8E1 are 4- or 8-port E1 D4E1 and D8E1 support both 2 and 16 interface modules used with frames per multiframe (256N and 256S), the DXC-8R, DXC-10A and DXC-30 as well as 2 Mbps unframed mode per modular digital cross-connect units (not ITU-T Rec. G.703. For long-range including DXC-100). The modules provide applications, D4E1 and D8E1 feature an E1 links over copper cable and operate at integral LTU option, ensuring ranges of up E1 or fractional E1 rates. to 2.2 km (1.4 miles). The Access Company D4E1, D8E1 4/8-Port E1 Interface Modules The line interface for D4E1 terminates in The diagnostic capabilities include local, When used in signaling monitoring four RJ-45 connectors while D8E1 remote, and inband code-activated applications, the D4E1 and D8E1 modules terminates in one DB-44 connector. The loopbacks on each E1 port. enable DXC to collect signaling timeslots interface detects the type of cable (such as SS7) from multiple leased lines Single-slot line redundancy (1:1) ensures attached and provides 120Ω balanced or and groom them over a single full E1 link protective switching between ports on the 75Ω unbalanced E1 depending on the to the protocol analyzer at a central site same module, within less than 50 msec. adaptor cable (see Ordering). (see Figure 3). LED indicators on the front panel alert the Setup, control, and diagnostics can be The modules occupy one I/O slot in a user to sync loss on the local or remote performed via a supervisory port using an DXC-8R, DXC-10A or DXC-30 chassis. units. ASCII terminal, or by RADview-EMS. Figure 1. Typical High-Density Grooming with DXC-30 Figure 2. High-Density T1/E1 Conversion and Cross-Connect with DXC-8R Data Sheet Resistive Attenuation in Monitoring Connectors Specifications Lower gain: 20 dB D4E1: 4 × RJ-45 Number of E1 Ports Higher gain: 32 dB D8E1: DB-44 female D4E1: 4 Jitter Performance Indicators (per port) D8E1: 8 Per ITU-T Rec G.823; ETSI TBR 13 Sync loss (red): LOC, REM Data Rate Line Impedance Diagnostics 2.048 Mbps per port Balanced: 120Ω Local and remote loopbacks on each Compliance Unbalanced: 75Ω module port ITU-T Rec. G.703, G.704, G.706, G.732 (Determined by use of adaptor cables) Inband code activated loopback per ANSI T1.403 Framing Pulse Shape G732N – 2 frames per multiframe, with or Per ITU-T Rec. G.703 Power Consumption without CRC-4 D4E1: 5.5W (1.1A at +5 VDC) Port Timing G732S – 16 frames per multiframe, with D8E1: 7.25W (1.45A at +5 VDC) Receive timing recovered from incoming or without CRC-4 line signal Physical Unframed Transmit timing locked to the DXC master Occupies a single slot in a DXC-8R, Line Code clock DXC-10A or DXC-30 chassis HDB3 For comparison of DXC chassis, see Timeslot Allocation Table 2. For the list of DXC I/O modules, Transmit Level User-defined, any timeslot to any timeslot refer to the DXC-8R/10A/30 folder. ±3V ±10% mapping Configuration Line Attenuation Programmable via ASCII terminal, Telnet, Short haul (DSU): -10 dB or RADview-EMS Long haul (LTU): -36 dB Figure 3. Signaling Monitoring with DXC-8R 772-136-11/10 (10.1) Specifications are subject to change without prior notice. 1993–2010 RAD Data Communications Ltd. The RAD name, logo, logotype, and the terms EtherAccess, TDMoIP and TDMoIP Driven, © and the product names Optimux and IPmux, are registered trademarks of RAD Data Communications Ltd. All other trademarks are the property of their respective holders. Data Sheet D4E1, D8E1 4/8-Port E1 Interface Modules OPTIONAL ACCESSORIES Ordering CBL-G703-8/RJ45/ST DXC-M-4E1 Splitter cable with station clock for splitting 4-port E1 interface module the 44-pin module connector to 8 E1 DXC-M-8E1 balanced RJ-45 connectors (D8E1 only) 8-port E1 interface module CBL-G703-8/RJ45/X Splitter cross-cable for splitting the 44-pin module connector to 8 E1 balanced RJ-45 connectors (D8E1 only) CBL- G703-8/COAX Adapter cable for converting the DB-44 connector to 8 pairs of BNC unbalanced connectors (D8E1 only) CBL-RJ45/2BNC/E1/X Adapter cable for converting the RJ-45 connector to BNC unbalanced connectors Table 2. DXC Chassis Comparison Table Feature DXC-8R DXC-10A DXC-30 DXC-100* Height 1U 1U 3U 6U per nest Maximum number of ports 32 40 120 688 (8 nests) Number of I/O slots 4 5 15 86 (8 nests) System redundancy Built-in None Optional Optional E1, T1, E3, T3, STM-1 modules 9 9 9 9 XDSL, inverse multiplexing modules 9 9 9 – n x 56/64 kbps modules 9 9 9 9 Router, OC-3 modules – – – 9 ASCII, SNMP, RADview management 9 9 9 9 *The DXC-8R/10A/30 modules and DXC-100 modules are not interchangeable. International Headquarters North America Headquarters 24 Raoul Wallenberg Street 900 Corporate Drive Tel Aviv 69719, Israel Mahwah, NJ 07430, USA Tel. 972-3-6458181 Tel. 201-5291100 Fax 972-3-6498250, 6474436 Toll free 1-800-4447234 E-mail market@rad.com Fax 201-5295777 E-mail market@radusa.com The Access Company www.rad.com Order this publication by Catalog No. 803178