Optical Communications Systems™ Datasheet Copper Ethernet SFPs SFP-GC-R and SFP-GA-R Highlights SFP-GC-R - 1000Base-T for Layer 1 devices (no MAC) SFP-GA-R - 1000Base-T for Layer 2 and above devices (with MAC) MDI/MDI-X automatic detection Plug-and-play functionality LOS support (SFP-GC-R) Hot-swap support Transmitter always on (no LIN support) MSA compliance Complete MRV SFP compatibility 1000 Base-T operation in host system with SGMII interface Overview MRV offers two models of Ethernet SFPs that support Gigabit Ethernet functionality for copper media application. The SFP-GC-R model supports Gigabit Ethernet with a 1000Base-T interface. It is designed for Layer 1 network devices that do not incorporate an Ethernet MAC. The SFP-GA-R is designed for use in Layer 2 and higher protocol devices such as switches and routers that do incorporate an Ethernet MAC. It supports Gigabit Ethernet with an auto-negotiating 1000Base-T interface. SFP-GC-R and SFP-GA-R models each support MDI/MDI-X auto-detection and jumbo packet sizes 9,600+ bytes. Installed into MRV products with an available SFP port, the SFP-GC-R plug-ins provide a simple and cost-effective way to merge copper and fiber network segments. The SFP-GA-R gives network administrators greater flexibility in configuring their SFP-enabled switches and routers, allowing them to use less expensive copper cabling and interfaces for links of 100 meters or less. The SFP-GC-R and SFP-GA-R do not convert between edge devices of different speeds or duplex mode. Connected edge devices must operate at the same speed and duplex mode to communicate. An edge device that supports autonegotiation may require specific interface settings for fixed Gigabit Ethernet speed and duplex mode operation. The SFP-GC-R uses the SFP’s RX_LOS pin for link indication. The SFP-GA-R is compatible with 1000Base-X autonegotiation, but does not use the RX_LOS pin for link indication because RX_LOS is internally grounded. The SFP-GA-R and SFP-GC-R SFPs support the 2-wire serial communication protocol outlined in the SFP MSA to communicate the link indication. Application A: Gigabit Ethernet Copper-to-Fiber Conversion with Redundancy SFP-GC-R SFPs are used in combination with the Fiber Driver Dual Multi-Rate Transponder (EM316DMR3G-3R) to create edge-to-edge redundant Gigabit copper links. Network Switch/Router Network Switch/Router EM316DMR module with SFP-GC-Rs and optical SFPs in a 1-slot Chassis Redundant GbE Copper Links Redundant GbE Copper Links Redundant GbE Fiber Links 1 Optical Communications Systems™ Datasheet Application B: SFP-Enabled GbE Switch/Router The SFP-GA-R is used in an SFP-enabled GbE switch or router to link to a server configured with a copper GbE NIC. Switch/Router Server Physical Specifications Operating Temperature Range 0° C to 70°C (32°F to 158°F) Storage Temperature -40°C to 85°C (-40°F to 185°F) Relative Humidity 85% maximum, non-condensing Power 1.5 W Regulatory Compliance FCC Part 15 (Class A); IC (Class A); EMC Directive: Emission (Class A) and Immunity; RoHS Directive; China RoHS; WEEE Directive: Wheelie Bin Mark Comparison Table SFP-GC-R SFP-GA-R RJ-45 connector Yes Yes Cable type CAT-5 CAT-5 Maximum cable length (m) 100 100 Ethernet Standard 1000 Base-T 1000 Base-T Supports speed auto-negotiation N/A Yes Supports duplex auto-negotiation N/A Yes Supports auto MDI/MDI-X detect Yes Yes Match translates between edge devices No. Both edge devices must operate in the same duplex mode. No. Both edge devices must operate in the same duplex mode. Used with Layer 0/1 devices (e.g. repeaters converters and WDM transponders) Yes No Used with Layer 2 devices, e.g. switches and routers No Yes Link Indicator on Rx_Los Pin Yes No 1000Base-X auto-negotiation enabled by defult No Yes Packet Size (bytes) 9600 + 9600 + I2C Bus Clock Rate 0 - 100,000 Hz 0 - 100,000 Hz 2 Optical Communications Systems™ Datasheet Notes for SFP-GC-R and SFP-GA-R: 1. 2. 3. By default SFP-GC-R and SFP-GA-R are full duplex devices in prefered master mode. Automatic crossover (MDI/MDIX) detection is enabled. External crossover cable is not required. With a SERDES that does not support SGMII, modules will operate at 1000Base-T only. Outline Drawing Model Function Voltage (V) Protocol Max. Data Rate (Mbps) Connectors Distance Range (m) Ordering Information SFP-GC-R SFP, 1000Base-T for Layer 0/1 devices. 3.3 Gigabit Ethernet 1250 RJ-45 0-100 SFP-GA-R SFP, 1000Base-T for Layer 2 and higher devices. 3.3 Gigabit Ethernet 1250 RJ-45 0-100 MRV has more than 50 offices throughout the world. Addresses, phone numbers and fax numbers are listed at www.mrv.com. Please e-mail us at [email protected] or call us for assistance. MRV Los Angeles 20415 Nordhoff Street Chatsworth, CA 91311 800-338-5316 818-773-0900 MRV Boston 300 Apollo Drive Chelmsford, MA 01824 800-338-5316 978-674-6800 MRV International Business Park Moerfelden Waldeckerstrasse 13 64546 Moerfelden-Walldorf Germany Tel. (49) 6105/2070 Fax (49) 6105/207-100 All statements, technical information, and recommendations related to the products herein are based upon information believed to be reliable or accurate. However, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. Please contact MRV Communications for more information. MRV Communications and the MRV Communications logo are trademarks of MRV Communications, Inc. Other trademarks are the property of their respective holders. MRV-OP-SFPGC-081810 3020115-001 Rev. A3 Copyright ©2010 MRV Communications, Inc. All Rights Reserved.