Advanced TCA – 16 Slot Backplane General Features ERNI Article Number 163408 Ideal for prototyping and laboratory work, too. Easily accessible base interface and IPMB-Busses also accomplish an excellent vehicle for test purposes. • • • • • • According to PICMG 3.0 Rev 1.0 (ECN 001) Interconnect topology: Dual star (dual star in fabric interface, dual star for base interface) Built-in redundancy for high-availabilty: fabrics, IPMBs, power supply 16 Slots 2 redundant hub/fabric slots placed in central position 14 node slots • PCB implementation: • Update channels’ topology: see below. • Physical/logical slot arrangement: see below Hardware Addresses implemented as cutable copper bridges; Relink feature by soldering 0805 SMT 0 Ohm resistor. • Bussed redundant IPMB_A and IPMB_B • • • • Dual power supply feeds Width 487.38 mm; Height 205,95 mm + feature-dependent extension PCB thickness 4.3 mm Zone 3 open for universal rear I/O capability 18 layer highspeed design utilizing affordable FR-4 Unique Features of this backplane • • • • • • 18 layers in printed circuit board (dual-star topology) Excellent current distribution Screwed power connection onto copper bus bars Ready for 2 optional RJ-45 connectors for IPMI-controller independent Base Interface access Update channel provides additional high-performance connectivity (see picture below) Affordable pricing featuring widely used FR-4 material All rights reserved 1/5 File: 163408 aTCA Backplane ProductDescription.doc ed.5 Update Channel wiring ERNI’s implementation: Power-entry to Backplane Position: Bottom extension of backplane Featured connector: Press-fit ERNI SVA (”power bugs”) 40 A per element Power bars mounted on top of SVAs to maintain excellent current distribution (Note 1). Connectivity at Backplane Level • • • • Two RJ-45 connectors to access the base interface (Note 1) IPMB A and B connector (DB-15) Metallic Test Bus on srew clamp (Note 1) Generator Bus on srew clamp (Note 1) Refer details below. All rights reserved 2/5 File: 163408 aTCA Backplane ProductDescription.doc ed.5 Connector for IPMB intra system connections Two rear side connectors featured with identical pinout for connecting backplane-external FRUs like ShMCs, power entry, fan trays, or maintenance panels. Connector type DB-15 female Pin Number VRTN_A 9 VRTN_B 10 (separation) 11 (separation) 12 SCL_A 13 IPMB_supply_A 14 SDA_B 15 Pin Number 1 -48 V A 2 -48 V B 3 (separation) 4 (separation) 5 Logic GND (for IPMB) 6 SDA_A 7 SCL_B 8 IPMB_supply_B Other connectors The backplane also features two IPMB expansion connectors (Molex 53398-0590 5pin version) according to PICMG3.0 (same as PICMG 2.9) (Note 1) The RJ-45 connectors are standard Gigabit-Ethernet ports which allow for a redundant connection between the fabric (hub) boards and an external shelf manager. All rights reserved 3/5 File: 163408 aTCA Backplane ProductDescription.doc ed.5 Front view of the backplane Rear view of the backplane All rights reserved 4/5 File: 163408 aTCA Backplane ProductDescription.doc ed.5 Schematic view to the front side of the backplane Silk screen only Layout including overlaid traces of base and fabric interfaces Note 1: Feature optional in volume production All rights reserved 5/5 File: 163408 aTCA Backplane ProductDescription.doc ed.5