3com MSR 20-20 사용자 설명서

MIM-1CPOS is short for the 1-port channelized SDH/SONET interface module. C 
stands for Channelized, and POS for Packet over SDH/SONET. MIM-1CPOS 
provides one STM-1/OC3-compliant multi-channel interface and support 
communication speeds up to 155.52 Mbps.

MIM-1CPOS has two models: MIM-1CPOS(E) for E1 system and MIM-1CPOS(T) for 
T1 system.

MIM-1CPOS is inserted in a MIM slot of a modular router and communicates with 
the CPU through the PCI interface to receive and transmit data on 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

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

Table 96   Interface attributes of the MIM-1CPOS(E)/MIM-1CPOS(T) module

Connector

SFP/LC 

Number of 
Connectors

1 

Interface 
standard

SONET OC-3/SDH STM-1 

Interface rate

155.52 Mbps 

Optical 
transmitt
er power 

Type Multi-mode 

short-haul 

Single mode 
medium-haul 

Single mode 
long-haul 

Single mode 
ultra-long-haul 

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 
sensitivity

-30.0 dBm 

-28.0 dBm 

-34.0 dBm 

-34.0 dBm 

Overload optical 
power

-14.0 dBm 

-7.0 dBm 

-9.0 dBm 

-10.0 dBm 

Central 
wavelength

1310 nm 

1310 nm 

1310 nm 

1550 nm 

Max. 
transmission 
segment

2 km (1.2 mi.) 

15 km (9.3 mi.) 

40 km (24.9 mi)  80 km (49.7 mi) 

Fiber type

62.5/125 

μm 

multi-mode 

9/125 

μm single 

mode 

9/125 

μm single 

mode 

9/125 

μm single 

mode