•
HMIM-4T1-F
•
HMIM-8E1T1
•
HMIM-8E1T1-F
HMIM-2E1/HMIM-4E1/HMIM-4E1-F
Introduction
The 2-port channelized E1/PRI interface module (HMIM-2E1) and 4-port channelized E1/PRI
interface module (HMIM-4E1) transmit, receive, and process E1 data traffic. In addition, you can use
these modules for CE1 access and ISDN PRI.
The HMIM-4E1-F module is different from the HMIM-4E1 module in the following ways:
The FE1 operating mode supported by the E1-F module allows only one n × 64 Kbps bundle to
•
be formed on each interface, where the value range of n is 1 to 31. However, an E1 module
allows arbitrary grouping of 31 channels and multiple bundles.
•
The E1-F modules do not support the PRI mode.
Interface specifications
Table 135 Interface specifications
Item
Connector type
Number of
connectors
Interface
standard
Interface rate
Cable type
Operating mode
Supported
services
Interface LEDs
Figure 98 HMIM-2E1 panel
Figure 99 HMIM-4E1 panel
HMIM-2E1/HMIM-2E1-F
DB15
2
G.703 and G.704
2.048 Mbps
•
E1 75-ohm unbalanced coaxial cable
•
E1 120-ohm balanced twisted pair cable
•
120-ohm 4E1 conversion cable (only supported by the HMIM-4E1/HMIM-4E1-F)
•
75-ohm 4E1 conversion cable (only supported by the HMIM-4E1/HMIM-4E1-F)
•
Coaxial connector, network interface connector, and 75-ohm to 120-ohm adapter
(with BNC connector)
•
E1, CE1, ISDN PRI (only supported by the HMIM-2E1/HMIM-4E1)
•
FE1 (only supported by the HMIM-4E1-F)
•
Backup
•
Terminal access service
•
ISDN PRI (only supported by the HMIM-2E1/HMIM-4E1)
HMIM-4E1/HMIM-4E1-F
DB25
1
85
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