3Com 8807, 8814 Front panel, Panel and LEDs 3C17538 module panel, Port LEDs on the 3C17538 module

42CHAPTER 2: I/O AND APPLICATION MODULES

Panel and LEDs Figure 27 3C17538 module panel

The 3C17538 module has one LED for each 1000 Mbps optical port on its panel.

Table 57 Port LEDs on the 3C17538 module

LED	Status	Meaning
LINK/ACT	Solid on	A link is present.
	Solid off	No link is present.
	Blinking	The port is transmitting or
		receiving data.

Matching Cable You can select appropriate SFP optical modules for the 1000 Mbps SFP/LC optical ports on the 3C17538 module accordingly to your needs. See Table 64 on page 45 for the available SFP optical modules and their matching cable types.

Application Modules Each Application Module is specially designed for high-speed processing of a certain network service and shares some features with the I/O Modules.

Currently, the following application module are available to the Switch 8800

Family:

■3C17542: Network Monitoring Application Module

■3C17546: Firewall Application Module

■3C1754766: Network Monitoring Application Module

■3C17548: VPLS Application Module

3C17542 Network

Monitoring Application

Module

Technical specifications

The 3C17542 Network Monitoring Application Module provides no I/O ports.

Table 58 Technical specifications for the 3C17542

Item	Specifications
CPU	MPC755
Boot ROM	512 KB
SDRAM	256 MB
Physical dimensions (W x D)	366.7 x 340 mm (14.4 x 13.4 in.)

Front panel

Figure 28 Front panel of the 3C17542