ADTRAN T200 H2TU-R, Руководство по установке и обслуживанию

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2 61222026L1-5, Issue 1 61222026L1-5A
Description
This version of the H2TU-R works with multiple list
versions of the HDSL2 transceiver unit for the central
office (H2TU-C) as listed below.
Unit Number Description
1221001LX .......... 220/E220 H2TU-C
1221003LX .......... DDM+ H2TU-C
1221004LX .......... 3192 H2TU-C
1221006L1 ........... T200 H2TU-C
1181111L1 ........... Total Access 3000 H2TU-C
1222001LX .......... 2
nd Generation 220/E220
H2TU-C
1222003LX .......... 2 nd Gen DDM+ H2TU-C
1222004LX .......... 2
nd
Generation 3192 H2TU-C
1181112L1 ........... 2 nd Generation Total Access
3000 H2TU-C
The H2TU-R can be deployed in circuits using one
H2TU-C and one H2TU-R.
The H2TU-R terminates local loop HDSL2 signals
originating from the Central Office (CO) unit and
transforms the HDSL2 signal into traditional DS1
signals to be delivered to the customer.
The H2TU-R (P/N 1222026L1) can be used with any
H2TU-C to provide a fully span-powered
extended-range HDSL2 circuit. Span power is
provided from the H2TU-C. Span powering meets all
requirements of Class A2 voltages as specified by
Bellcore GR-1089-CORE.
The H2TU-R can also be locally powered from a -48
Vdc (nominal) service. In this application, the
H2TU-C’s span power should be disabled.
CAUTION
Upon removal of a local power source (-48 Vdc)
from a multi-mount housing where the H2TU-R
is installed, there may be a temporary loss of
power which would be service affecting. The
H2TU-R should be either installed for a design
supporting span power or local power, but not
both.
2. INSTALLATION
After unpacking the unit, inspect it for damage.
If damage is discovered, file a claim with the carrier,
then contact ADTRAN. See
Warranty and Customer
Service .
The settings on the H2TU-C are encoded and
transmitted to the H2TU-R once the circuit has
achieved synchronization. There are no switch
settings on the H2TU-R.
Remote Provisioning
This H2TU-R can be used to provision the entire
HDSL2 circuit via the craft interface.
Compliance Codes
CAUTION
Voltages up to -200 Vdc may be present on the
telecommunications wiring.
CAUTION
The DSX-1 connections should be connected to
intra-building wiring only.
Table 1 shows the Compliance Codes for the
H2TU-R. The H2TU-R complies with the
requirements covered under UL 60590 third edition
and is intended to be installed in an enclosure with an
Installation Code (IC) of “B” or “E.”
NOTE
This product is intended for installation in
Restricted Access Locations only.
Code Input Output
Installation Code (IC) A –
Telecommunication Code (TC) X X
Power Code (PC) C C
Table 1. Compliance Codes
C A U T I O N C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.