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C-30
Hardware Specifications
C.3.11 VMA-200 Technical Specifications
The VMA-200 ATM Adapter provides ATM connectivity to Crimson, Onyx,
Challenge XL, Challenge L, and Power Challenge machines, and has the fol-
lowing specifications:
Hardware
Architecture On-board 25 mHz i960 cell processor
AAL Support Special purpose, on-board hardware for HEC, CRC, and AAL5 and
3/4 calculations
UNI 155 Mbps SONET STS-3c/SDH STM-1
Form Factor Single-slot 6U or 9U VMEbus
Compliance ATM cell processing per ANSI T1S1.5/92-002R3, ITU I.361, and
ATM Forum v3.0 UNI specification.
Cabling Duplex 62.5/125 µm multimode fiber (2 km max. run, 10 dB loss);
2-pair 100 ohm CAT 5 or CAT 5 screened UTP (100 meters max.)
Connectors ST and SC Types for multimode fiber; RJ-45 for CAT 5 UTP copper
Memory 256 kbytes on-board RAM
DMA Support “Fly-by,” scatter-gather DMA support; VMEbus Master;
A32/D32, 64 word maximum block transfers; A32/D64, 512 word
maximum block transfers; Full 32-bit datapath
VMEbus modes supported Master: A32/D32, A32/D64; Slave: A16/D16, A32/D32
Requester: Level 3 only - fair requester; Interrupter: Level [7:1]
Software
Transparent TCP/IP protocol interface
Enhanced-performance ATM Application Programming Interface (API) Library
SPANS Switched Virtual Circuit (SVC) signalling protocol
Permanent Virtual Circuits (PVC), Supports up to 1024 Virtual Circuit Identifiers (VCIs)
Application-controlled multicasting and broadcasting with recipient add and delete capabilities
Support for UNI 3.0 signalling, ILMI, LAN Emulation Services Clients, Classical IP
SNMP MIB access to adapter status, ATM cell statistics, cell errors, and VCI/VPI information
General
Dimensions 6U: 0.6" H x 6.3" W x 9.2" D ( 1.5 cm x 16 cm x 23.4 cm)
9U: 0.6" H x 14.4" W x 15.7" D ( 1.5 cm x 36.6 cm x 39.9 cm)
Weight 6U: 10.8 oz. (306 g), 9U: 32.5 oz. (922 g)
Power Requirements 2A (maximum) @ +5V; 50 mA@ + 12V
Operating Temperature 32˚F to 104˚F (0˚C to 40˚C)
Operating Humidity 20% to 80%, non-condensing @ 40˚C
Compliance FCC Part 15, Class A Verification (UTP); FCC Class B Certification
(fiber-optic connectors)