1-Port 10/100/1000Base-T – 2-Port Gigabit SFP Switch/Redundant Media Converter


Gigabit Ethernet Distance Extension

The GT-1205A directly converts the media from the Gigabit fiber to twisted pair interface. For example, it can be applied between the Gigabit Fiber Switch and the Gigabit Copper Network Card to perform media conversion and transmission.

With the conversion, you can easily have the transmission distance of Gigabit copper cable extended up to 550 meters or longer (depending on SFP module). Built in with two SFP ports, the GT-1205A can integrate with the existing copper switch to provide Gigabit fiber transmission without the need of replacing with the Gigabit Fiber Switch. With the Gigabit fiber transmission, the GT-1205A enables video stream to be delivered from the camera up to 120km away to local Network Video Recorder.

GT 1205Av4 4


Fiber-Optic Networking for ISPs, System Integrators, Enterprises and Homes

With high performance of data transmission and easy installation, the GT-1205A can build the ISP network solution of FTTH (Fiber to the Home), FTTC (Fiber to the Curb) and FTTB (Fiber to the Building). The GT-1205A is also ideal for small office network environment of enterprises.

GT 1205Av4 5


Fault Tolerant Redundant Link for Critical Network Applications

The GT-1205A is designed for optical fiber networks that require rapid link redundancy. With the auto-recovering feature, the redundant media converter responses rapidly for critical applications.

GT 1205Av4 7

GT 1205Av4 8

Interface Specifications
Hardware Version 4
Ports Copper: 1 x 10/100/1000BASE-T port
Fiber: 2 x 100/1000BASE-X SFP slots
Cable Twisted-pair
10BASE-T: 2-pair UTP Cat3,4,5, up to 100 meters
100BASE-TX: 2-pair UTP Cat 5, 5e up to 100 meters
1000BASE-T: 4-pair UTP Cat 5e,6 up to 100 metersFiber-Optic Cable
50/125μm or 62.5/125μm multi-mode fiber cable, from 220 and 550 meters to 2km.
9/125μm single-mode cable, with distance for 10/20/40/80/120km (vary on SFP module)
50/125μm or 62.5/125μm multi-mode fiber cable, up to 2km(vary on SFP module)
9/125μm single-mode cable, with distance for 20/40/60km (vary on SFP module)
Hardware Specifications
Switch Architecture Store and Forward
Flow Control Back pressure for Half duplex.
IEEE 802.3x pause frame for Full duplex
Fabric 6Gbps
Throughput (packet per second) 4.4Mpps
Maximum Packet Size 10K bytes
LED Display System:
One Power LED (Green)
Fiber Port:
Two LNK/ACT LED (Green)
TP Port :
One Speed LED (Green) , One LNK/ACT LED (Orange)
Dimensions (W x D x H) 94 x 70 x 26mm
Weight 180g (device only)
Power Requirement 5V DC, 2A max.
Power Consumption 2.8watts/9.5BTU per hour max.
Operating environment 0 ~ 50 degrees C
Storage environment -10 ~ 70 degrees C
Operating Humidity 5 ~ 95%, relative humidity (non-condensing)
Storage Humidity 5 ~ 95%, relative humidity (non-condensing)
Standard Conformance
EMI Safety FCC Class B, CE
Standard Compliance IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX/100BASE-FX
IEEE 802.3ab 1000BASE-T
IEEE 802.3z 1000BASE-SX/LX
IEEE 802.3x Flow Control