Black Box Modular Switches, LE14XXA manual port modules, 100Mb fiber, port modules, 10 Mb fiber

ack Box Modular Switches Installation and User Guide (8/99)

2.2 4-port modules, 100Mb fiber

FDX/HDX	1	2	3	4
	LK			ACT

1

2

3

4

FDX/HDX	1	2	3	4
1 LK
				ACT

2

3

4

ST-Type VF45-Small Form Factor

FDX/HDX	1	2	3	4
1	LK			ACT
2
3
4

SC-Type

FDX/HDX		1	2	3	4	ACT
1	LK
2
3
4

MTRJ-Small Form Factor

g.2.2.2 Fiber 4-Port Modules, LE1420C, LE1419C LE1423C LE1422C

In a fiber 4-port module, all of the fiber ports are of the same speed, the same multi- or ngle-mode, and the same connector type. Multi-mode 100Mbps models are available with ST, C, MTRJ, and VF -45 connectors. Single-mode 100Mbps models are available with SC nnectors.

The 100Mb fiber 4-port modules on the Black Box LE14XXA-Series normally are set actory default) to operate in full-duplex mode for best fiber distance and performance. On the E14XXA-Series, the user may select full- or half-duplex mode per-port with an internal jumper tting (See Section 3.4) for the flexibility to adapt to any type of Fast Ethernet devices.

On Black Box fiber 4PMs, there are three LED’s per fiber port. The Link (LK) LED dicates “ready for operation” when lit, another LED indicates operation in full-duplex mode hen ON (when it is OFF, operation is half-duplex), and an LED indicates Receiving Activity CT) on the port. A fiber cable must be connected to each 100Mb port and a proper link (LK ) must be made with the device at the other end of the cable in order for the LK LEDs to ovide valid indications of operating conditions.

2.3 4-port modules, 10 Mb fiber	FDX/HDX 1	2	3	4
	LK			ACT
	1
The 10 Mb model LE1424C fiber 4-port	2
	3
	4

odule is the same as the 100Mb LE1428C, except

r 10Mb speed rather than 100Mb speed. It

ST-Type

pports distances according to the 10Base-FL standard, i.e., 2Km distance for multi-mode fiber. ingle-mode for 10km distance may be available as a special order).

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