RAD Industrial Partner

RAD DXC-30 Modular Digital Cross Connect D4T1 - 4/8-Port T1 Interface Modules Simple Type: Interface Option

D4T1 and D8T1 are 4- or 8-port T1 interface modules for use with the DXC-8R, DXC-10A and DXC-30 modular digital cross-connect units (not including DXC-100.) The modules provide T1 links over copper cable, and operate at T1 or fractional T1 rates. D4T1 and D8T1 support D4 (SF) and ESF framing, as well as unframed mode. Special “light” module versions D4T1L and D8T1L can be ordered if only framed mode is needed. For long range applications, the modules feature an integral CSU option, operating at ranges of 2.2 km (1.4 miles.) D4T1 and D4T1L modules provide four balanced 4-wire interfaces terminated with an RJ-45 connector per port. D8T1 and D8T1L modules provide eight balanced 4-wire interfaces terminated with two DB-25 connectors and one DB-44 connector, respectively. Setup, control, and diagnostics can be performed via a supervisory port using an ASCII terminal or by the RADview-EMS. Diagnostic capabilities include remote, local, remote inband code-activated, FDL line, and FDL payload loopbacks. All loopbacks can be independently activated on each port. When used in signaling monitoring applications, D4T1, D8T1, D4T1L and D8T1L modules enable DXC to collect the signaling timeslots (such as SS7) from multiple leased lines and groom them over a single full T1 link to the protocol analyzer at a central site. Single-slot line redundancy (1:1) ensures protective switching within less than 50 msec, between ports on the same module. The modules occupy one I/O slot in the DXC chassis.

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