CHAPTER 2: PRODUCT DESCRIPTION PRODUCT DESCRIPTION
MULTILINK ML3000 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL 2–7
FIGURE 2–7: Module N - four open 100 Mb SFP Slots
SFP Transceivers are available with multimode 850 nm (550 m), 1310 nm (2 km),
singlemode 1310 nm (10 km and 25 km) and singlemode 1550 nm (40 km and 70 km) fiber
options, as well as RJ45 copper. See Section 1.2.1: Order Codes for available part numbers.
2.2.9 Module A (Gb) - two Gigabit RJ45 (use in Slots 1 and 2 only)
The Module A two-port Copper Gigabit module provides two fixed 10/100/1000 Mb RJ45
ports for configuration in slots 1 and/or 2.
FIGURE 2–8: Module A - two Gigabit RJ45
There are two LEDs provided for each Gigabit port. Each Copper Gigabit port has LEDs that
indicate Link/Activity (L/A) and Full/Half Duplex (F/H).
2.2.10 Module H (Gb) - two Gigabit SFPs (use in Slots 1 and 2 only)
The Module H two-port Fiber Gigabit module provides two SFP open transceiver ports in
slot 1 and/or 2. SFP Transceivers are available with both multimode 850 nm (550 m),
1310 nm (2km), singlemode 1310 nm (10km and 25 km) and singlemode 1550 nm (40 km
and 70 km) fiber options, as well as RJ45 copper. See Section 1.2.1: Order Codes for
available part numbers.
FIGURE 2–9: Module H, Two Gigabit SFPs
The 1000 Mb Gigabit SFP fiber-port modules on the ML3000 are normally set (factory
default) to operate at AUTO mode for best fiber distance and performance. Each port has a
Link/Activity (L/A) LED indicating proper connectivity (Link) with the remote device when lit
and blinking (Activity), indicating packets being received.
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