1. Orion Telecom Networks Inc. - 2010Slide 1 4 x Ethernet over E1(4*FE1) Updated: April 2010Orion Telecom Networks Inc. - 2010 4 Ethernet over E1 (4xFE1) Product Presentation

2. Orion Telecom Networks Inc. - 2010Slide 2 4 x Ethernet over E1(4*FE1) Product Overview  4 Ethernet over E1 Converter provides the user a facility to transport Ethernet (multiple LANs) over an E1 link.  Very Compact and Low cost.  Converts and transports upto 4 x Ethernet links over an E1 in a shared mode, or a discrete mode, depending on the user's preference and selection In shared mode: All 4 Ethernet channels are transported over the same shared E1 link and are allowed full access to each other's path The user may select this mode if the user desires that all of the 4 x Ethernet links that are being transported over the same E1 to optimally share its bandwidth resources and where discretion is essential In discrete mode: All 4 Ethernet channels are transported over the same E1 link, but without allowing intrusion or access to each other's path.

3. Orion Telecom Networks Inc. - 2010Slide 3 4 x Ethernet over E1(4*FE1) Product Overview The user may select the discrete* mode when the user desires to transport all 4 Ethernet channels over the same E1 line discretely, and without allowing access to each other  The device can effectively utilize the redundant bandwidth of telecom operators' existing TDM network to transport Ethernet data with low investment  Optional powers 220V AC and -48V DC.

4. Orion Telecom Networks Inc. - 2010Slide 4 4 x Ethernet over E1(4*FE1)  The maximum transmission rate of 4 Ethernet data over E1 links is 2.048 Mbit/s  Supporting 1600 frames, accordance with Interior Switching Link (ISL) Protocol  Supports unframed, framed and multi framed E1 transmission mode  Supporting local E1 port loop-back  The Ethernet Port is self-adaptive to crossover or shoot-through (Straight / Parallel) cable to avoid the trouble of re-wiring  Supports up to four Ethernet Ports. Supports port mask  Ethernet negotiation function. Supports 10M/100M and working modes of both full-duplex and semi-duplex  Transparently transmits ultra-long frames stipulated in IEEE 802.1Q, and supports Ethernet switches with VLAN function. Features and Highlights

5. Orion Telecom Networks Inc. - 2010Slide 5 4 x Ethernet over E1(4*FE1) Features and Highlights  Imbedded, dynamic Ethernet MAC address list (1024 addresses), and filter function for local data frames Can support multiple LANs of different network addresses  Optional powers 220V AC and -48V DC  Supported fractional E1. E1 Bandwidth can be adjusted from 64 Kbps to 2048 Kbps and selected in N*64Kbps format  Transport the DATA transparently (No configuration required)  Visual alarms (LEDs) on front panel  Provides 120 Ohms – RJ45 and 75 Ohms - BNC E1 interface in the same box (user selectable)  Configurable Ethernet port speed (10 /100) and mode (Half / Full Duplex)  Speed limit function for different Ethernet ports.

6. Orion Telecom Networks Inc. - 2010Slide 6 4 x Ethernet over E1(4*FE1) Features and Highlights  VLAN (port based) mode supported to isolate the Ethernet Data from local Ethernet ports  Ethernet port mode status (LEDs)  Plug and Play  Very compact and low power consumption.

7. Orion Telecom Networks Inc. - 2010Slide 7 4 x Ethernet over E1(4*FE1) Applications  This equipment may be used for the following purposes: Bridging Ethernet LANs over existing TDM (E1) telecom network Extending Ethernet Networks utilizing TDM (E1) landline based telecom infrastructure Using telecom network of E1s / PDH / SDH Microwave etc. Carrying E1s to transport Ethernet data  In all these cases the equipment be always installed and used in pairs, with one terminal being installed at either end (each side) of the network.

8. Orion Telecom Networks Inc. - 2010Slide 8 4 x Ethernet over E1(4*FE1) Application Diagram Shared Link Mode E1 Link LAN ROUTER TDM Network E1 Link 4xEthernet over E1 LAN ROUTER Note:In the "shared link mode", the VLAN switch must be OFF (The Ethernet ports are not isolated to each other on both sides of the E1 link). 4xEthernet over E1

9. Orion Telecom Networks Inc. - 2010Slide 9 4 x Ethernet over E1(4*FE1) Application Diagram E1 Link LAN ROUTER LAN ROUTER TDM Network 4xEthernet over E1 Discrete Link Mode Note:In the “Discrete Link Mode", the VLAN switch must be ON (The Ethernet ports are isolated to each other on both sides of the E1 link).

10. Orion Telecom Networks Inc. - 2010Slide 10 4 x Ethernet over E1(4*FE1) Front Panel Description

11. Orion Telecom Networks Inc. - 2010Slide 11 4 x Ethernet over E1(4*FE1) Back Panel Description 4xEthernet over E1 (220V AC Mains input) 4xEthernet over E1 (-48V DC Mains input)

12. Orion Telecom Networks Inc. - 2010Slide 12 4 x Ethernet over E1(4*FE1) Bottom Panel Description Timeslot selection for the fraction E1 is given in the bottom of the equipment

13. Orion Telecom Networks Inc. - 2010Slide 13 4 x Ethernet over E1(4*FE1) For more details visit us at our Website at http://www.oriontelecom.com Thank you for your attention Regional Office: Miami, Florida Orion Telecom Networks Inc. 4000 Ponce de Leon Blvd. Suite 470, Coral Gables, FL 33146, U.S.A. Phone: 1-305-777-0419, Fax: 1-305-777-0201 E-mail: sales@oriontelecom.com Website: http://www.oriontelecom.com Headquarters: Phoenix, Arizona Orion Telecom Networks Inc. 16810, Avenue of the Fountains, Suite # 108, Fountain Hills, AZ 85268 U.S.A. Phone: +1 480-816-8672, Fax: +1 480-816-0115 E-mail: sales@oriontelecom.com Website: http://www.oriontelecom.com