4E1-IMA (4-Port-E1 ATM IMA Interface Card)
Card Overview
The 4E1-IMA is a WAN connection module. It uses inverse multiplexing over ATM (IMA) to bundle multiple E1 lines to form a high-bandwidth IMA group link. The IMA group link transmits multimedia services for enterprises.
A 4E1-IMA card can be installed in a WSIC slot of a router.
Figure 7-96 shows the appearance of a 4E1-IMA card.
Version Mapping
Table 7-223 lists the device models and software versions supporting the 4E1-IMA.
Card Name |
Device Model |
|---|---|
4E1-IMA NOTE:
This card is supported in V200R003C00 and later versions. |
AR1200 series (All models in this series except the AR1220C and AR1220-8GE) AR2204 AR2204XE AR2204XE-DC AR2220 AR2220L-AC AR2220L-DC AR2220E AR2240 AR2240C AR3200 series AR3600 series |
Functions and Features
Table 7-224 describes the functions and features of a 4E1-IMA card.
Function and Feature |
Description |
|---|---|
Basic functions |
Uses IMA to transmit ATM cell streams at a high rate. |
|
|
Flexible bandwidth adjustment |
Adds and deletes the multiplexed E1 links anytime, meeting various bandwidth requirements. |
Low cost |
Transmits ATM cell streams on multiple E1 lines at a high rate, preventing high expenses for network upgrade due to traffic burst. |
ATM transmission advantages |
Provides traffic management, fault tolerance capability, compatibility with traditional devices, and QoS. |
Panel
Figure 7-97 shows the indicators on a 4E1-IMA card, and Table 7-225 describes the indicator states and meanings.
Number |
Indicator |
Color |
Description |
|---|---|---|---|
1 |
STAT |
Green |
Slow blinking: The system is running properly. Fast blinking: The system is being powered on or restarting. |
Red |
Steady on: A fault that affects services has occurred and cannot be rectified automatically. The fault needs to be rectified manually. |
||
Off |
Off: The software is not running or is being reset. |
||
2 |
E1-IMA interface indicator |
Green |
Steady on: A link has been established. |
Amber |
Blinking: Data is being transmitted or received. |
||
Off |
Off: There is no connection. |
Figure 7-98 shows the interfaces on a 4E1-IMA card.
1. Four E1-IMA interfaces |
E1-IMA interface
An E1-IMA interface is used to transmit ATM cells at a high rate. Table 7-226 lists attributes of an E1-IMA interface.
Attribute |
Description |
|---|---|
Connector type |
RJ45 |
Standards compliance |
ITU-G.703, ITU-G.704 |
Interface rate |
2.048 Mbit/s |
Working mode |
|
Protocols |
PPPoA, PPPoEoA, IPoA, IPoEoA |
Service provided |
CBR/VBR-RT/VBR-NRT/UBR |
Function |
AAL5 |
Cable type |
Technical Specifications
Table 7-227 lists the technical specifications of a 4E1-IMA card.
Item |
Specifications |
|---|---|
Card type |
WSIC |
Hot swap |
Supported |
Physical specifications |
|
Environment parameters |
|
Ordering Information
To place an order, visit https://e.huawei.com/en/how-to-buy to find the local supplier or submit your inquiries online.
Table 7-228 provides 4E1-IMA card ordering information.