363-206-204
About This Document
Issue 9 October 1998
xxxix
SAVE THESE INSTRUCTIONS
.
IMPORTANT SAFETY INSTRUCTIONS
Read and understand all instructions.
Follow all warnings and instructions marked on the product.
Do not place this product on an unstable cart, stand, or table. The product may fall, causing
serious damage to the product.
Slots and openings in this product cabinet and the back or bottom are provided for ventila-
tion. To protect it from overheating, these openings must not be blocked or covered. This
product should not be placed in a built-in installation unless proper ventilation is pro-
vided. For information on proper ventilation requirements, refer to "Equipment Installation
Considerations" of this manual.
This product should be operated only from the type of power source indicated on the mark-
ing label. For information on proper electrical distribution and power requirements, refer
to "Power Cable Installation - Front Access" or "Power Cable Installation - Rear Access"
of this manual.
Never push objects of any kind into this product through cabinet slots as they may touch
dangerous voltage points or short out parts that could result in a risk of fire or electrical
shock. Never spill liquid of any kind on the product.
To reduce the risk of electrical shock, do not disassemble this product. Service should be
performed by trained personnel only. Opening or removing covers and/or circuit packs
may expose you to dangerous voltages or other risks. Incorrect reassembly can cause
electrical shock when the unit is subsequently used.
!
CAUTION:
Disconnect both (P1 and P2) connectors from their mating (J1 and J2) power
connectors when removing power from the system.
Use only Lucent Technologies manufactured
UL*
recognized circuit packs in this system.
The following circuit packs are
UL
recognized for use in the DDM-2000 OC-3 Multiplexer:
BBF1B (TGS), BBF2 (TGS), BBF2B (TGS), BBF3 (DS1PM), BBF4 (TGS)
â€
, BBF8
(HDSL), BBG2 (MXRVO), BBG4/BBG4B (DS3), BBG5 (SYSCTL), BBG6 (STS-1E),
BBG7 (OHCTL), BBG8 (SYSCTL), BBG9 (OHCTL), BBG10 (OHCTL), BBG20 (TMUX),
21D (OLIU), 21D-U (OLIU), 22D-U (OLIU), 22F (OLIU), 22F-U (OLIU), 22F2-U (OLIU),
21G (OLIU), 21G-U (OLIU), 22G-U (OLIU), 22G2-U (OLIU), 22G3-U, 24G-U (OLIU),
27G-U (OLIU) and 177A (low speed -DS1- slot) and 177B (DS3 slot) retainers.
The DDM-2000 OC-3 Multiplexer is
UL
listed for restricted access installations in business
and customer premises applications installed in accordance with Articles 110-16 and
110-17 of the National Electric Code and ANSI/NFPA Number 70-87. Other installations
exempt from the requirements of the National Electric Code may be engineered accord-
ing to the accepted practices of the local telecommunications utility.
†Available third quarter 1998. This circuit pack will contain a Stratum 3 timing generator.
* Registered Trademark of Underwriters Laboratories, Inc.
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