Verilink HDM 2180 (880-503048-001) Product Manual - Manual (Page 16)

HDM 2180 DS3 DSU Overview
1-6 Verilink HDM 2180 User Manual
• 15.812: Conducted Emission
• UL 1459, 2nd Edition
• CSA—C225
Technical
References for
Network Interface
This product complies with the following industry standard
specifications:
AT&T PUB 54014 All
AT&T TR-000499 Electrical interface
ANSI T1.102 Electrical interface
ANSI T1-107a C-bit parity framing format
Technical references Complies with the following industry
standard specification, which defines the
operation of the high-speed serial interface
channel:
TIA TR30.2-SP2795—all specifications.
Agency
Approvals
This product is certified by the following agencies to verify
compliance with regulatory requirements as part of the
certification process for the AS2000 product family:
• FCC
• UL
• CSA
Dual-Line Shelf
Limitations
These limitations apply when the HDM 2180 is used in a Dual-line
shelf. They must be observed to prevent intermittant data loss.
• Because of heat build-up, only one HDM 2180 may be used in a
Dual-Line shelf.
• Since the HDM 2180 draws more current than other AS2000
modules, two external power supplies must be used whenever
an HDM 2180 is placed in a Dual-line shelf. The power supplies
will not be fully redundant.
• Whenever an HDM 2180 is used in a Dual-line shelf with an
NCM 2000 controller module, the HDM 2180 must be in the
first (left hand) slot and the NCM 2000 must be in the right
hand slot.
• When an HDM 2180 is used in a Dual-line shelf without an NCM
2000, the HDM 2180 must be mounted in the right hand slot
(slot 2).