Timension 8-port Multipurpose Gigabit Switch

Overview
The TMS-8 is a non-blocking, 8-port crosspoint switch for HIPPI channels. All ports are fully compliant with both the ANSI X3.183-1991 HIPPI-PH High Performance Parallel Interface Physical Standard and the ANSI X3.222-1993 HIPPI Switch Control Standard.

Network Compatible
The TMS-8 is fully compatible with any networking software implementing the ANSI HIPPI Switch Control Standard.

Low Latency
The TMS-8 does not buffer data, but instead streams the data to the destination, thereby minimizing data latency from the source to the destination. Both connection and data latencies are less than 1 µsec.

Switch Management
The switch management function is performed by an internal processor, an external RS-232C host, telnet, or HTML. Through a ninth internal switch port, the Switch Manager can generate small HIPPI packets (up to 31 full bursts) to any destination, and receive small packets directed to a reserved logical address. In addition, the Switch Manager has full access to all port look-up tables and status. Per-port statistics include: connections/second, megabytes/second, READY status, interconnect status, and switch utilization by port.

Camp On
When requested by the incoming I-field, the switch will wait for the selected path (or paths) to become available and will not generate a rejected connection sequence until the connection is rejected downstream.

Source Addressing
In the Source Addressing mode, three bits of the incoming I-field are used to select the output port on the switch. Eight TMS-8's may be cascaded in this mode.

Logical Addressing
In this mode, twelve bits of the incoming I-field are used with a look-up table to select the output port on the switch. The number of switches to be traversed is limited only by cycles dropped during synchronization by each switch. In the worst case, the TMS-8 will support 30 consecutive switch traversals without losing synchronization. The look-up tables used with Logical Addressing are loaded by either an external RS-232C host, by TFTP over Ethernet. Each of the eight HIPPI destination ports has a separate look-up table which may be loaded independently. The look-up tables are stored in nonvolatile memory.

Fast Disconnect
The TMS-8 breaks a connection as soon as the source drops its request, without waiting for a round-trip delay response.

Configuration
The TMS-8 breaks a connection as soon as the source drops its request, without waiting for a round-trip delay response.

FEATURES 8 Multipurpose ports supporting Fiber HIPPI, 4 of which also supporting copper HIPPI Full HIPPI bandwidth of 800 Mbps on each channel Support for both both Source and Logical (Destination) Addressing Less than 1 µsecond input port arbitration delay Routing capabilities independently configurable by port, permitting restricted network access on a port-by-port basis Independent Switch Management port accessible through logical addressing or RS-232C connected terminal or processor Local and remote status and control Redundant cooling with fan monitoring Supports combined copper/fiber ports – up to 8 fiber, or up to 4 copper + 4 fiber BENEFITS Compact (66% smaller than existing 8x8 HIPPI switch), powerful, and inexpensive Modest power consumption Chassis designed for very low EM Versatile port configuration allows for mix of interface types Drop-in replacement that adds abilities over legacy HIPPI switches	Overview The TMS-8 is a non-blocking, 8-port crosspoint switch for HIPPI channels. All ports are fully compliant with both the ANSI X3.183-1991 HIPPI-PH High Performance Parallel Interface Physical Standard and the ANSI X3.222-1993 HIPPI Switch Control Standard. Network Compatible The TMS-8 is fully compatible with any networking software implementing the ANSI HIPPI Switch Control Standard. Low Latency The TMS-8 does not buffer data, but instead streams the data to the destination, thereby minimizing data latency from the source to the destination. Both connection and data latencies are less than 1 µsec. Switch Management The switch management function is performed by an internal processor, an external RS-232C host, telnet, or HTML. Through a ninth internal switch port, the Switch Manager can generate small HIPPI packets (up to 31 full bursts) to any destination, and receive small packets directed to a reserved logical address. In addition, the Switch Manager has full access to all port look-up tables and status. Per-port statistics include: connections/second, megabytes/second, READY status, interconnect status, and switch utilization by port. Camp On When requested by the incoming I-field, the switch will wait for the selected path (or paths) to become available and will not generate a rejected connection sequence until the connection is rejected downstream. Source Addressing In the Source Addressing mode, three bits of the incoming I-field are used to select the output port on the switch. Eight TMS-8's may be cascaded in this mode. Logical Addressing In this mode, twelve bits of the incoming I-field are used with a look-up table to select the output port on the switch. The number of switches to be traversed is limited only by cycles dropped during synchronization by each switch. In the worst case, the TMS-8 will support 30 consecutive switch traversals without losing synchronization. The look-up tables used with Logical Addressing are loaded by either an external RS-232C host, by TFTP over Ethernet. Each of the eight HIPPI destination ports has a separate look-up table which may be loaded independently. The look-up tables are stored in nonvolatile memory. Fast Disconnect The TMS-8 breaks a connection as soon as the source drops its request, without waiting for a round-trip delay response. Configuration The TMS-8 breaks a connection as soon as the source drops its request, without waiting for a round-trip delay response.

SPECIFICATIONS / STANDARDS
Physical Dimensions: (HxWxD) 5.2" x 17" x 13.25" (13.2 cm x 43.2 cm x 33.7 cm) Weight (Fully populated): 20 lb. (9.1 kg) Mounting: Rack mounting with removable brackets, or free standing Interfaces HIPPI conformant to ANSI X3.183-1991 HIPPI-PH Serial HIPPI ANSI X3.300-1997 HIPPI-SERIAL Standard. RJ-11 type RS-232 RJ-45 Ethernet & Fast Ethernet, IEEE 802.3 Power Supply: Autoranging 100-240 VAC, 50-60 Hz IEC-320 type line cord. Power Consumption: 160 Watts (Max) Module Options Single-height Fiber HIPPI Matrix Independent Interface Module (MIIM), Long wave (10km) and short wave (500m) Triple-height Copper Source/Destination module Fibre Channel (planned) IEEE 1394 (1995, 1394a) dual port module (planned) IEEE 1394b 800 Mb fiber module (planned)	Environmental Environment Temperature 32° - 104° F Humidity 10% - 90% non-condensing Altitude to 10,000 feet (3,048 meters) Safety Certifications (pending) EN 60950 CSA-C22.2 No. 950-93 Electromagnetic Emissions Certifications (pending) FCC Class B CSA/TUV
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