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COMMERCE BUSINESS DAILY ISSUE OF MAY 23,1997 PSA#1852US Army, CECOM Acquisition Center, Ft. Monmouth, New Jersey 07703-5008 58 -- BANDWITH-EFFICIENT-MODULATION MODEM SOL NA DUE 062097 POC Point
of Contact -- Johnny Ng, 908-532-9782 x5423 E-MAIL:
Bandwith-Efficient-Modulation Modem, ngj@doim6.monmouth.army.mil. THIS
IS A REVISION TO A NOTICE POSTED EARLIER TODAY. REVISION IS NOTED BY
THE [ ] SYMBOL. This is a market survey to locate potential sources of
supply for Commercial off-the-Shelf (COTS) modem equipment with Binary
Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), Offset
Quadrature Phase Shift Keying (OQPSK), and 8-ary Phase Shift Keying
(8PSK) modulation and demodulation capabilities. The modem will be used
to support wideband users of the Defense Satellite Communications
System (DSCS). The BPSK, QPSK, and OQPSK capabilities must be
compatible with the OM-73 Modem Group and be supported by selectable
rate 1/2, 3/4, and 7/8 Forward Error Correction coding (FEC) formats.
The QPSK capability must also be compatible with Intelsat Earth Station
Standard (IESS) -308 FEC formats at selectable rates of 1/2, 3/4, and
7/8. The BPSK, QPSK, and OQPSK capabilities must support data rates
selectable from [8.448] kbps to 10.0 Mbps in 1 bps increments. The 8PSK
capability will be in accordance with IESS-310, Paragraph 10.2, and it
must be supported by rate 2/3 pragmatic trellis and inner rate 5/6 FEC
formats. The 8PSK capability must operate at data rates from 256 kbps
to 10.0 Mbps in 1 bps increments. In addition, the 8PSK capability must
support all rates in the ITU-T G.703 hierarchy from T1 (1.544 Mbps) to
T3 (44,736 Mbps). Modem performance in all four modulation formats
must be compliant with applicable portions of MIL-STD-188-164,
MIL-STD-188-165 and Defense Satellite Communications System (DSCS)
Earth Terminal Certification Requirements (DISA, 1 July 1996). The
modem shall mount in a standard 19-inch rack. The receive/demodulator
function requires the support of a doppler buffer operating over the
full range of specified data rates. Modem baseband interfaces must be
compatible with the IDNX, TD-1337, and similar baseband equipment used
in the DSCS Digital Communications Satellite Subsystem (DCSS).
Built-in Test Equipment (BITE) is required to allow fault detection and
isolation to the LRU/circuit card level without external test
equipment. The modem will be installed in a ground fixed environment of
a DSCS earth terminal complex and it must be fully compatible with all
of the standard DSCS fixed earth terminals. It will be powered from a
115 Vac, 50/60 Hz source and will accept a reference signal from the
facility frequency standard. Its Intermediate Frequency (IF) interface
will be programmable over the range of 52 to 88 MHz in 2.5 kHz steps.
The modem will include a control and monitoring capability which can
be accessed by a military operator from either the modem front panel or
a remote personal computer or video display terminal via a serial
interface. In addition, it must be possible to control the modem via a
serial interface to the DSCS FDMA Control Subsystem (DFCS), using the
OM-73 control protocols specified in the DCSS FDMA Control System
(DFCS) Interface Control Document for the DFCS Network Terminal and
OM-73(V)/G Modem Group Modules MD-1195/G Demodulator and C 11640/G
Controller (Draft, 2March 1994). Contractors may be required to provide
2 units, on loan, for pre-contractual testing purposes. The government
envisions a future need to procure approximately 400 units over multi
years beginning in FY98. Any interested sources with suitable modem
equipment must send technical information to include, but not be
limited to, detailed product specification, available test data,
schedule availability and cost information, NLT 20 June 1997, to Bldg.
209, ATTN: AMSEL-RD-ST-SE-ST (Johnny Ng), Ft Monmouth, NJ 07703.
Contractors shall also include information on any open DOD contractual
vehicles for the subject equipment, to include GSA schedules. All
questions should be addressed to Johnny Ng, (908) 532-9783, x5432.
Email address: ngj@doim6.monmouth.army.mil. (0141) Loren Data Corp. http://www.ld.com (SYN# 0316 19970523\58-0012.SOL)
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