83
Interface LEDs
Figure 96 HMIM-1POS front panel
Table 132 LED description
LINK/ACT
• On means carrier signal has been received.
• Flashing means data is being received or/and transmitted.
• Off means no carrier signal has been received.
LP/AL
• On means the interface is in a loopback.
• Off means no loopback or alarm is present.
• Flashing means an alarm indication signal (AIS), loss of frame
alignment (LFA) signal, or remote alarm indication (RAI) signal is
present.
Fiber ports, optical fibers, and the connection methods
For more information about fiber ports, optical fibers, and the connection methods, see "Fiber port."
CPOS (SDH/SONET) interface module
• HMIM-1CPOS
HMIM-1CPOS
Introduction
The 1-port channelized SDH/SONET interface module (HMIM-1CPOS) provides one
STM-1/OC3-compliant multi-channel interface. It provides an interface rate of up to 155.52 Mbps.
You can set E1 or T1 working mode for the HMIM-1CPOS interface module.
The HMIM-1CPOS interface module is installed in an HMIM slot to receive and transmit data on
STM-1 channelized POS interface and to communicate with the CPU through the PCI interface.
The HMIM-1CPOS provides the following features:
• Multiple transceiver modules.
• Clear channel (unframed) E1 or T1
• Fractional (framed) E1 or T1
• A maximum of 256 × 64 kbps logical channels
Interface specifications
Table 133 Interface specifications
Interface
standard
SONET OC-3/SDH STM-1
Number of
interfaces
1
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