Evolution® IP-20LH Installation Guide
Ceragon Proprietary and Confidential Page 14 of 101
2. Evolution IP-20LH Hardware Overview
The Evolution IP-20LH is a modular unit based on a 1RU or 2RU chassis into
which a variety of cards can be inserted for traffic, radio interface,
management, and power supply. The IP-20LH backplane provides
connectivity among the slots in the chassis for management, power
distribution, and traffic aggregation.
An IP-20LH chassis and the cards it contains are managed by a Traffic Control
Card (TCC). A 2RU IP-20LH can hold two TCCs for redundancy
. TCCs include
two GbE combo interfaces for Ethernet traffic and two FE interfaces for
management.
Note: In a redundant TCC configuration, the GbE traffic interfaces
on the TCC are disabled.
Radio Module Cards (RMCs) are responsible for the interface between the
IP-20LH and the XCVRs. A 1RU IP-20LH can hold up to four RMCs. A 2RU
IP-20LH can hold up to eight RMCs.
Line Interface Cards (LICs) can be added to provide additional traffic
interfaces. Ethernet and TDM LICs can be used. A 2RU chassis can contain up
to ten LICs, up to two of which can be Ethernet LICs. A 1RU chassis can contain
up to five LICs, one of which can be an Ethernet LIC.
Note: In a 2RU chassis with two Ethernet LICs, the GbE interfaces
on the TCC are disabled.
The IP-20LH receives an external supply of -48V via a Power Distribution Card
(PDC). A 2RU IP-20LH chassis can hold two PDCs (for card redundancy). The
PDC or PDCs distribute the power via the backplane to all the modules in the
chassis.
IP-20LH provides two basic chassis options:
1RU – Fits in a single ETSI rack slot, with one Main Traffic and Control Card
(TCC), four universal slots for a combination of up to four Radio Interface
Cards (RMCs) and/or Line Cards for traffic (LICs), and a Power
Distribution Card (PDC).
2RU – Fits in two ETSI rack slots, with two Main Traffic and Control Cards
(TCCs), eight universal slots for a combination of up to eight Radio
Interface Cards (RMCs) and/or Line Cards for traffic (LICs), and two Power
Distribution Cards (PDCs).
TCC redundancy is planned for future release.
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