Up to 56 devices supported from two controllers on a single pair of Fiber Optic cable
	The only fiber optic multiplexer that supports split-polling (200% speed improvement — dual option) on enhanced AS/400 WSCs
	Direct DB25 workstation controller connection on rear panel
	Compatible with Express and standard data rates.
	Automatic data rate detection
	Advanced noise suppression on all ports
	Does not require performance-robbing PTFs to function
	Extends AS/400 ports up to 15,000' on multi-mode fiber optic cable
	Supports both “point to point” and “multipoint” applications
	Polarity insensitive as long as host and device balun polarities are the same
	Field-replaceable universal voltage power supply
	Shielded RJ45 with any active pin configuration

Decision Data’s eight-port, fiber-optic Gemini Express Multiplexer offers the unique ability to allow up to two AS/400 controller polling groups to be transmitted over a single fiber optic pair. Controller redundancy and maximum fiber optic efficiency are obtained by multiplexing four ports each from up to two separate controllers for a total device capacity of 56 — the highest in the industry. This feature also allows all new AS/400e controllers to provide their maximum throughput potential, in either 1Mbps Optimized or 2Mbps Express mode, by transparently multiplexing the split-polling feature without requiring performance-robbing PTFs. All new IBM controllers support the split-polling feature as a means of achieving higher throughput rates, even when connected to standard legacy devices. The Gemini Express Multiplexer allows the split-polling feature to remain enabled with performance of up to 4 times greater than standard legacy 1Mbps 5250 protocol.

The Gemini Express Multiplexer has eight shielded RJ45 port connections as well as a DB25 direct-connection eliminating the need for the twinax brick and associated twinaxial cabling. Link connectivity is via ST fiber optic multi-mode connection with ability to operate in both point-to-point and multi-point ring topologies, reducing hardware requirements by up to 50%.

Other features include Advanced Noise Filtering, LED Port Diagnostics, Configurable UTP Pin Assignments, and a Field Replaceable wide-ranging Power Supply.

	Number of Ports: 8
	Data Rate: 1 or 2 MBPS IBM 5250 protocol
	Nominal input impedance: 100 ohms
	Interface: Shielded RJ45 and DB25
	Fiber Optic Connectors: ST
	Active Pair: Port Configurable

	Controller to Gemini multiplexer: Up to 2000 ft.
	Gemini multiplexer to Device: Up to 2200 ft.
	Fiber Optic Link: Up to 6600 ft.
	Fiber Optic Budget: 12 dB (typical)
	Diagnostic LEDs: Power, port activity & mode
	Power : 100-240 VAC to +5VDC external power supply

	Operating: 0 to 40 C
	Storage: 0 to 85 C
	Humidity: 95% non-condensing

19" X 8.75" X 1.75" (1U)

Three years