3Com MSR 30, MSR 20, MSR 50 manual Interface attributes of the FIC-1CPOSE/FIC-1CPOST

FIC-1CPOS 219

The FIC-1CPOS has two models: the FIC-1CPOS(E) for E1 system and the

FIC-1CPOS(T) for T1 system.

The FIC-1CPOS communicates with the CPU through the PCI interface to receive and transmit data on the STM-1 channelized POS interface. It supports:

■Four types of hot swappable SFP optical interface modules for your choice: multi-mode short-haul (1310 nm), single-mode medium-haul (1310 nm), single-mode long-haul (1310 nm), and single-mode ultra-long-haul (1550 nm).

■Clear channel (unframed) E1 or T1.

■Fractional (framed) E1 or T1.

■Up to 256 64 kbps logical channels.

Interface Attributes The following table describes the interface attributes of the FIC-1CPOS(E)/FIC-1CPOS(T).

Table 163 Interface attributes of the FIC-1CPOS(E)/FIC-1CPOS(T)

Attribute		FIC-1CPOS(E)/FIC-1CPOS(T)
Connector		SFP/LC
Number of		1
Connectors
Interface		SONET OC-3/SDH STM-1
standard
Interface rate		155.52 Mbps
Optical	Type	Multi-mode	Single mode	Single mode	Single mode
transmitt		short-haul	medium-haul	long-haul	ultra-long-haul
er power
	Min.	-19.0 dBm	-15.0 dBm	-5.0 dBm	-5.0 dBm
	Max.	-14.0 dBm	-8.0 dBm	0. dBm	0. dBm
Receiver		-30.0 dBm	-28.0 dBm	-34.0 dBm	-34.0 dBm
sensitivity
Overload optical		-14.0 dBm	-7.0 dBm	-9.0 dBm	-10.0 dBm
power
Central		1310 nm	1310 nm	1310 nm	1550 nm
wavelength
Fiber type		62.5/125 μm	9/125 μm single	9/125 μm single	9/125 μm single
		multi-mode	mode	mode	mode
Max.		2 km (1.2 mi.)	15 km (9.3 mi.)	40 km (24.9 mi)	80 km (49.7 mi)
transmission
segment

c CAUTION: For a long-haul fiber-optic interface, the transmission distance must be longer than 25 km (15.5 in.) to allow the receiver to work. In case of closer distances, insert an optical attenuator to reduce the input optical power.

Interface LEDs The following figure illustrates the FIC-1CPOS(E) panel: