Ext-2U Expansion Unit; Figure 2-2: Npt-1020 Platform With Expansion Unit; Figure 2-3: Ext-2U Platform - Eci Telecom NPT-1020 Installation And Maintenance Manual

NPT-1020 Installation and Maintenance Manual
The NPT-1020 can be fed by 24 VDC, -48 VDC, or 94-240 VAC. In DC power feeding, two INF modules can be
configured in two power supply module slots for redundant power supply, or one double slot INF module
with dual-feeding can be configured. AC power feeding requires the use of a conversion module to
implement AC/DC conversion.
The NPT-1020 can be installed in 2,200 mm or 2,600 mm ETSI racks or in 19" racks. The rugged platform
design also makes this platform suitable for street cabinet use, withstanding temperatures up to 70°C.
The NPT-1020 can also be configured as an expanded platform, when combined with the
unit, as illustrated in the following figure.
Typical power consumption for the NPT-1020 is 50 W. Power consumption is monitored through the
management software. For more information about power consumption requirements, see the NPT
Installation and Maintenance Manual and the NPT System Specifications.
2.2

EXT-2U Expansion Unit

The EXT-2U platform is a high density modular expansion unit for the NPT's multiservice metro access
platform series. It supports the complete range of native and hybrid PCM, TDM, PDH, SDH, and Ethernet
interfaces. All traffic processing, cross-connect, packet switching, timing and synchronization, control and
communication and main power supply functions are performed by the corresponding system in the base
unit on which expansion unit is installed. Integrating this add-on platform into your network configuration
is not traffic-affecting.
N
OTE: The EXT-2U expansion unit can be combined with the NPT-1020, NPT-1021, NPT-1050,
NPT-1200, and NPT-1800 platforms. For easier reading, the slot layout is not repeated in the
sections describing each of those platforms. The reader is simply referred back to this slot
layout description.
The EXT-2U expansion unit is housed in a 243 mm deep, 465 mm wide, and 88 mm high equipment cage
with all interfaces accessible from the front of the unit. Expansion units include their own independent
power supply and fan unit, for additional reliability and security. The platform includes the following
components:
ECI Telecom Ltd. Proprietary

Figure 2-2: NPT-1020 platform with expansion unit

Figure 2-3: EXT-2U platform

Introduction
EXT-2U expansion
2-2