4000 Router Series Interface Module Guide

Table 68 Interface attributes of MIM-IMA-4T1

Attribute Descri

tion

Connector DB68

Number of connectors 1

Interface standard ITU-G.703, ITU-G.704

Cable type 4T1 conversion cable (100-ohm straight-through shielded)

Max transmission distance 150 m (492.1 ft)

Operating mode ATM T1 independent link/IMA bundle mode

Supported service AAL5

Protocol PPPoA, PPPoEoA, IPoA, IPoEoA

Transmission rate CBR/VBR-rt/VBR-nrt/UBR

Interface LEDs

The following figures illustrate the MIM-IMA-4T1 panel.

Figure 44 MIM-IMA-4T1 panel

LEDs on MIM-IMA-4T1 panels have the same meanings, which are described in the following table.

Table 69 Description for the LEDs on the MIM-IMA-4T1 panel

LED Descri

tion

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.

• Flashing means an AIS, LFA, or RAI alarm signal is present.

• OFF means no loopback or alarm is present.

Note:

AIS = Alarm indication signal; LFA = loss of frame alignment; RAI = Remote alarm indication

Interface cables and the connection methods

For more information about T1 interface cables and the connection methods, see "T1 interface."

POS (SDH/SONET) interface module

• MIM-1POS