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239 H4R Installation and Maintenance Practice Installation
61223445L1-5D 5
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by ADTRAN could void the user’s authority to operate this
equipment.
3. INSTALLATION
After unpacking the 239 H4R, inspect it for damage. If damage has occurred, file a claim with the carrier, then
contact ADTRAN Customer Service. Refer to “Appendix A, Warranty” for further information. If possible, keep
the original shipping container for returning the 239 H4R for repair or for verification of shipping damage.
Shipping Contents
The contents include the following items:
• 239 T1 HDSL4 Repeater (H4R)
• 239 T1 HDSL4 Repeater (H4R) Job Aid
CAUTION
Electronic modules can be damaged by ESD. When handling modules, wear an
antistatic discharge wrist strap to prevent damage to electronic components. Place
modules in antistatic packing material when transporting or storing. When working
on modules, always place them on an approved antistatic mat that is electrically
grounded.
There are no manual option settings for the H4R.
H4R power is derived from an H4TU-C, independent of line impedance or wire gauge. The operating power from
the H4TU-C may also be used to span power the H4TU-R.
The 239 H4R is designed for deployment in any environmentally controlled 239-type apparatus case.
A retainer latch is available for securing the 239 H4R in the apparatus case.
When installing the ADTRAN 239 H4R refer to the Installation and Maintenance Practice for the housing being
used.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.