35
LED
Status
Description
LP/AL
Off
No loopback or alarms occur.
On
The interface is in loopback state.
Flashing
A minimum of one alarm of the type of AIS, LFA, or RAI has
occurred.
•
LFA
—Loss of frame alignment.
•
AIS
—Alarm indication signal.
•
RAI
—Remote alarm indication.
Interface specifications
Table 44 Interface specifications
Item
Specification
Connector type
SMB
Number of interfaces
2
Interface standards
G. 703, G.704, G.751
Interface speed
34.368 Mbps
Cable type
75-ohm E3 coaxial cable
Working modes
E3/CE3
Services supported
E3 leased line
Interface cables
The MIM-1CE3 provides two SMB interfaces, with one interface acting as the transmission end (Tx)
and the other as the receiving end (Rx). The Tx and Rx interfaces operate in the 75-ohm unbalanced
transmission mode and thereby need a pair of 75-ohm unbalanced coaxial cables in use for
connection with the peer device.
NOTE:
•
The MIM-1CE3 and MIM-1CT3 use the same type of E3/T3 cable.
•
The E3/T3 cable is an optional accessory for the MIM-1CE3 to be separately ordered if needed.
•
For the appearance and connection of an E3/T3 cable, see "
Connecting a CE3/CT3/T3 interface
."
MIM-1CT3
The MIM-1CT3 is a 1-port channelized T3 interface module. It has the following features:
•
In T3 mode, it transceives and processes high-speed data streams over the T3 channel, and
provides access to T3 data streams.
•
In CT3 mode, it provides the low-speed accessing service at N × 64 or N × 56 kbps, where N is
smaller than or equal to 128.
