1. UL Class 1 Div 2 Certified Products

2. What is Class 1 Div 2? Class I, II, III Hazardous Locations (US Department of Labor, OSHA Office of Training and Education summary) ClassesGroupsDivision 1Division 2 Class I gases, vapors and liquidsA: Acetylene B: Hydrogen, etc. C: Ether, etc D: Hydrocarbons, fuels, solvents, etc. Normally explosive and hazardous. Not normally present in an explosive concentration (but may accidentally exist). Class II dustsE: Metal dusts (conductive, explosive) F: Carbon dusts (some are conductive, all are explosive) G: Flour, starch, grain, combustible plastic or chemical dust (explosive) Ignitable quantities of dust normally are or may be in suspension, or conductive dust may be present. Dust not normally suspended in an ignitable concentration (but may accidentally exist). Dust layers are present. Class III fibers and flyingsTextiles, wood-working, etc (easily ignitable but not likely to be explosive) Handled or used in manufacturing. Stored or handled in storage (exclusive of manufacturing).

3. UL Class 1 Div 2 required to penetrate Oil & Gas and Chemical manufacturing markets Most of Transition Networks Industrial products now carry UL C1 D2 Certification We will plan to include Class 1 Div 2 on most new industrial products Exception is Power-over-Ethernet products: It may be extremely difficult/costly to achieve C1 D2 on these. What is Class 1 Div 2?

4. Class 1 Div 2 Industrial Media Converter Auto-sensing, redundant 12-48vdc power inputs Barrel connector power input supplied Dry Contact Relay Alarm Output DIN rail mounting incorporated Wall mount brackets included IP 30 protection metal case 10/100 Switch mode or 100Base pure converter mode (switch selectable) AutoCross, Auto-Negotiation, Link Pass Through Immunity, Shock, Vibration all meet “hardened” specifications of industry –SISTF1013-211-LRT 10/100Base-TX to 100Base-FX (MM SC) –SISTF1014-211-LRT 10/100Base-TX to 100Base-FX (SM SC) Operating temp range: -40°C to +75°C SISTF1013-211-LRT

5. Class 1 Div 2 Industrial Media Converter: Gigabit Industrial Gigabit Media Converters (C1 D2) –SISTG1013-211-LRT 10/100/1000Base-T to 1000Base-X (MM SC) –SISTG1014-211-LRT 10/100/1000Base-T to 1000Base-X (SM SC) –SISTG1040-211-LRT 10/100/1000Base-T to 1000Base-X (SFP Slot) Operating temp range: -40°C to +75°C SISTG10xx-211-LRT SISTG1040-211-LRT

6. Industrial Unmanaged All-Copper 10/100Base-TX Switch SISTF1010-250-LRT C1 D2 SISTF1010-280-LRT C1 D2 SISTF1010-250-LRT (5) 10/100BASE-TX Extended Operating Temperature: -40 to +75 C Class 1 Div 2 Certified SISTF1010-280-LRT (8) 10/100BASE-TX Extended Operating Temperature: -40 to +75 C Class 1 Div 2 Certified

7. Industrial Gigabit Fully Managed Class 1 Div 2-Certified Switch SISGM1040-262-LR Update of our SISGM1040-162D-LR switch (6) 10/100/1000 Base-T + (2) 10/100/1000Base-T or 100/1000 SFP Combo ports Full Management features, same as SISGM1040-162D-LR UL Class 1 Div 2 Certification for use in hazardous locations such as oil & gas refining and chemical operations Improved X-Ring Redundant Ring Technology: < 20 msec Availability: NOW Lifetime Warranty No Price Change from SISGM1040-162D-LR

8. Fully Managed Industrial Utility Layer 2 Switch Operating temp range: -40°C to +75°C (4) 10/100/1000T + (4) 100/1000Base-X SFP New mechanical design Provides the ability to build geographically large networks to support alternative energy projects such as wind or solar energy farms Same list of advanced management features as our SISGM1040-262D-LR X-Ring, Dual-Homing and Couple-Ring Redundancy technology to support high availability network ring architectures Lifetime Warranty!! UL Class 1 Div 2 Certified for Use in Hazardous Locations SISGM1040-244-LRT C1 D2

9. Industrial Managed (16) 10/100Base-TX + (2) Gigabit Port Aggregation Switch Operating temp range: -40°C to +75°C (16) 10/100Base-TX + (2) 100/1000Base-X SFP Combo ports Ideal solution for aggregating industrial embedded devices with native Ethernet ports into the factory network UL Class 1 Div 2 Certification for use in hazardous locations such as oil & gas refining and chemical operations Coming: GL Certification Fully-managed switch Lifetime Warranty SISTM1040-262D-LRT

10. Device Servers

11.  Serial-to-Ethernet Converter  RS232 or RS422 or RS485 serial signal converted to Fast Ethernet  First protocol conversion product from Transition  Allow you to network-enable and remotely manage legacy, serial-based devices such as:  Point-of-sale scanners and inventory bar code readers  Security systems, card access readers, HVAC systems, lighting  Freeway signs, traffic signals  Programmable logic controllers (PLCs), robots, conveyor systems  X-ray machines, CAT and MRI machines, patient monitoring devices What is a Device Server?

12.  Combine inherent benefits of data networking with asynchronous data transmission  Directly manage, access and control any device through the network in-building or through the internet from anywhere in the world  Benefits can be significant:  Immediate access to information from virtually any location  Improved flexibility in network design  Significant reduction in operational costs  Extend the life of legacy, serial-based devices – save money!!  Remote monitoring of equipment  Remote management of devices that previously could only be managed locally  Remote upgrades of serial devices Device Server Benefits

13.  Encapsulates the serial bit stream into packets and transports it over the Ethernet network  Uses an external driver and software to “packetize” the data and  Can also perform the reverse function and restore the serial data to its original form  Remotely managed via an IP address  Three modes:  Direct IP mode (aka TCP/IP or UDP socket)  Virtual COM mode  Tunneling mode How does a Device Server work?

14. Device Server Modes Direct IP mode or COM Port –Direct IP connection Communication via TCP/IP or UDP socket –Communication via COM Port Requires external driver to convert COM port to TCP/IP socket Also known as Virtual COM Serial/IP ® Redirector software – included

15. What is a Virtual COM port? Allows the network connection (Ethernet port) of a computer to emulate a serial port (COM port) 1)Data is sent from application software to the host computer’s serial port 2)The external driver intercepts the data stream 3)Encapsulates the data into a TCP/IP packet 4)Re-directs the packet(s) to the Ethernet connection (NIC) Application Driver Serial Port Ethernet Port Data

16. Device Server Modes Tunneling –Two Serial Devices connected directly to each other over Ethernet –The raw data in the IP packet will be transferred from and to serial port No need to upgrade serial-only software platforms because serial data remains intact and is transmitted as if the host and serial device were connected directly via a serial cable

17. Industrial Device Server – Needed? Traditional Ethernet-based Ideal Migration Path

18. Industrial Device Server – More Likely Scenario

19. RS232/422/485 Device Server  Serial-to-Ethernet conversion  Network enable any legacy serial-based device  IP Remote Management  Telnet, Web browser or COM port  Six Different Device Server Modes  TCP Server/Client; UDP Server/Client  Device Server/Converter Only  SNMP Public and Private MIBs  Remote TFTP Upgrade  Ideal for SCADA RTU devices  RS232/422/485 to 10/100BT SDSFE3110-120

20. Device Server – Screen Shots

21. Transition’s Unique Industrial Solutions

22. CWDM Value Proposition in Industrial Supports ALL legacy and proprietary industrial protocols Extended operating temperature: 0 to 70 C Extended Distance Shock / Vibration tolerant – NASA uses on launch pad Maximize ROI on existing fiber plant for factory upgrades < ½ the cost of DWDM solutions No power supply requirements Fanless / dust tolerant for dirty environments Strong interest from industrial customers

23. Fiber Network CWDM Converter Application Multiple protocols can be transmitted over a single duplex fiber link by combining fiber outputs of several converters with passive CWDM mux/demux  SONET, ATM, Fast Ethernet, Gigabit Ethernet, T1/E1, DS3/E3, etc…

24. MIL-SM8002TG “Lite” Industrial Switch 7-port 10/1001000Mbps Switch plus 2 Combo RJ-45/SFP Ports IGMP snooping and Query mode support for Multi-Media application (IGMP V1, V2) 18Gbps switch fabric IEEE 802.1x authentication Web, SNMP v1/2, Telnet, CLI Management Remote firmware upgrade and configuration backup/restore. Broadcast storm filters VLAN, QoS, CoS, RSTP Port mirroring 8K MAC address table Auto-Negotiation Auto-MDIX on all ports Flow Control with Full Duplex Back Pressure with Half Duplex SNTP and SMTP support Bandwidth allocation DHCP Client and Server Size: 8.5” W x 5.5” D x 1.7” H Indoor/Protected Outdoor 0 to 60 C Operating Temperature Range

25. Extended Temperature Media Converters E-TBT-FRL-05(xxHT) –Ethernet 10Base-T to 10Base-FL Extended Temperature MC –-25 to +70 C operating temperature range –5% to 95% RH –UL Listed –Don’t worry--Lifetime Warranty! E-100-BTX-FX-05(xxHT) –Fast Ethernet 100Base-TX to 100Base-FX Extended Temp MC –-25 to +65 C operating temperature range –5% to 95% RH –UL Listed –Lifetime Warranty SPS-2460 Power Supply to Accompany the above (coming Q310) –- 40 to +65 C operating temperature range –Lifetime Warranty!

26. Extended Temperature SFP Modules TN-SFP-GE, TN-SFP-GE-L, TN-SFP-GE-Z Gigabit Ethernet 1000Base-LX with Digital Diagnostics in MM or SM versions Cisco Compatible -40 to +85 C operating temperature range Key part of solution for bringing Ethernet switching and Media Conversion into industrial environments Lifetime Warranty!

27. Summary  Transition brings a broad market outlook to the Industrial segment  Parent company, CSI, offers financial strength  Strong background in Power-over-Ethernet and Media Conversion  Unique “Lite” Industrial solutions where fully-hardened not needed  Recent UL Class 1 Div 2 Certifications of many of our products allows us to better serve customers in the Oil & Gas industry  Lifetime Warranty on all Industrial Products, including power supplies!  24/7/365 US-based Technical Support  Free vendor-neutral weekly Webinars  Participation, membership and leadership in industry organizations such as MEF and BICSI

28. Thank You!