Hardware description
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Description
The 1642 AM and 1643 AMS units are compact and cost-effective STM-1 and STM-4
(AM only) multiplexer designed to be installed at the customer’s premises for
fiber-to-the business applications or in street cabinets for fiber-to-the curb applications.
The space-efficient design allows wall, rack or desk mounting within controlled or
uncontrolled environment locations according to ETSI 300 019-1-3 Class 3.2.
The 1642 AM and 1643 AMS units can also act as an SHDSL Line Termination Unit
(LTU) when equipped with the SHDSL option card. Several third party Network
Termination Units (NTUs) can be connected to the LTU.
Powering
The 1642 AM and 1643 AMS units can be ordered either as DC or as AC powered
versions. The power ranges are given in chapter 3.
Both units can also be AC powered by using a DC powered unit in conjunction with
an optional AC/DC converter (see figure below).
Table 2-1 Technical specifications (AC/DC converter)
Item DR-120-48 converter DR-75-48 converter
AC input 88 ... 132 VAC or
176 ... 264 VAC
(selectable by switch)
85 ... 264 VAC
DC output 48V, 0 ... 2.5A 48V, 0 ... 1.6A
Temperature range –10°C ... +60°C –10°C ... +60°C
Figure 2-1 AC/DC converter
AC/DC converter
AC side
(3 poles)
DC side
(4 poles)
General information
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2-2
Alcatel-Lucent - Proprietary
See notice on first page
365-312-802R7.2
Issue 4, June 2007
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