Enterasys Networks A2H254-16 ユーザーズマニュアル

Gigabit Ethernet Specifications

A-4 Specifications

Gigabit Ethernet Specifications

The following specifications for the Mini‐GBICs shown in

Table A‐3

through

Table A‐11

meet or exceed the IEEE 802.3z‐1998 standard.

MGBIC-LC01/MGBIC-MT01 Specifications (1000BASE-SX)

MGBIC-LC03 Specifications (1000BASE-SX)

Table A-3 MGBIC-LC01/MGBIC-MT01 Optical Specifications

Item

62.5 µm MMF

50 µm MMF

Transmit Power (minimum)

-9.5 dBm

Receive Sensitivity

-17 dBm

Link Power Budget

7.5 dBm

Table A-4 MGBIC-LC01/MGBIC-MT01 Operating Range

Item

Modal Bandwidth @
850 nm

Range

62.5 µm MMF

160 MHz/km

2-220 Meters

62.5 µm MMF

200 MHz/km

2-275 Meters

50 µm MMF

400 MHz/km

2-500 Meters

50 µm MMF

500 MHz/km

2-550 Meters

Table A-5 MGBIC-LC03 Optical Specifications

Item

62.5/125 µm MMF

50/125 µm MMF

Transmit Power (minimum)

-9.5 dBm

Transmit Power (maximum)

-3 dBm

Receive Sensitivity

-20 dBm

Link Power Budget

(Multimode Only)

1. The maximum drive distance (up to 2 km) depends on the quality of the installed multimode fiber-

optic cable segment. Use the Link Power Budget to calculate the maximum cable length of the
attached segment. The Link Power Budget must not exceed those specified in this table. The
MGBIC-LC03 input power must not exceed -3 dBm. Otherwise, saturation could occur.

10.5 dBm