Functional Block Diagram - Blonder Tongue Laboratories Inc.

Broadband Specification Guide
AQM
The QAM modulator shall have a 2RU modular design to permit up to six units to be inserted in a chassis with a common power supply. The modulator shall provide
modulation modes of 16, 32, 64, 128, 256, 512 and 1024 QAM. It shall have an integrated frequency agile upconverter capable of CATV output channels 2 to 135.
The QAM modulator shall be equal to Blonder Tongue AQM and shall meet or exceed the following specifications:
a) Input: ASI (per EN 50083-9)
b) Symbol Rate: Variable, up to 10 Mbaud
c) FEC Encoder:
Complies with ITU-T J.83 Standards,
Annex A (DVB) & Annex B
d) MER: 40 dB
e) RF Output: CATV 2 to 135 (54-864 MHz)
f) Output Level:
+40 dBmV (average measurement)
g) Output Level Control: 10 dB
h) Amplitude Flatness: ± 0.25 dB (over 6 MHz)
i) Phase Noise: @ 10 kHz Offset: -98 dBc
AQT
The ATSC/QAM to QAM transcoder shall have a 3RU modular chassis design permitting up to eight units to be mounted along with a common power supply and
control unit. The transcoder modules shall be compatible with both off-air 8VSB and CATV QAM channel inputs. The ATSC/AQM transcoder shall be equal to Blonder
Tongue AQT and shall meet the following specifications:
a) Demod Mode
a. ATSC: 8VSB or 16VSB
b. ITUA: 16, 32, 64, 128, 256 QAM
c. ITUB: 64, 256 QAM
b) 8 VSB Input Range:
a. VHF/UHF, 54-806 MHz
b. Level
i. -28 dBmV Min. 8VSB
ii.
c) QAM Input Range
a. 54-861 MHz
b. Level
AQT-PCM/QTRC
The rack chassis and power supply/control module shall be UL Listed and provide eight modular slots for mounting and powering AQT (ATSC/QAM) transcoders. The
rack chassis shall occupy 3 RU’s in a 19 inch rack. The power and control unit shall have a backlit Liquid Crystal Display with 5 navigation/enter push buttons. The rack
chassis and its power supply/control module shall be equal to Blonder Tongue QTRC and AQT-PCM. They shall meet or exceed the following specifications:
a) Power Requirement: 100 to 265 VAC 50/60 Hz, 107 W
b) Operating Temperature: 0 to 50º C
c) Chassis Size (W x H x D): 19 x 5.25 x 12 in.
AQT-RCS
-25 dBmV Min. 16VSB
i. -20 dBmV Min. QAM64
ii. -15 dBmV Min. QAM256
Equipment Specifications Library
j) Spurious Output (54-1000 MHz): - 60 dBc
k) Broadband Noise:
-77 dBc (@ 40 dBmV out, 4 MHz BW)
l) Controls: LCD display with 5 interactive navigation/enter push buttons
m) Connectors:
ASI input (BNC 75 Ω), RF output (F)
n) Operating Temperature Range: 0 to 50º C
o) Dimensions (W x H x D): 2.3 x 3.5 x 7.5 in.
The AQT-RCS (Remote Configuration Server) shall be an optional unit and have a modular design to interface with the PCM (Power & Control Module) and occupying
one slot of the Rack Chassis. The RCS will feature a graphical web browser based interface to permit remote computer control of the entire AQT headend. The unit
shall have a programmable static IP address and function with standard browsers such as Microsoft ® Internet Explorer ® 6.0 or later and not require any software to
be loaded onto an operators computer. The RCS shall be equal to the Blonder Tongue AQD-RCS or exceed the following specifications:
a) IP Addressing: Fixed Static IP
b) User Name & Password: Software Settable
c) Administrator & View Modes
d) Module Dimensions (W x H x D):
11.31 x 5.25 x 1.5 in.
e) Chassis Dimensions: 19 x 5.25 x 12 in.
f) Mounting: Standard 3 EIA Unit Height
5.25 x 19 in.
g) Power Requirement: 5 VDC, 200 mA
d) QAM Output
a. 54-860 MHz (CATV 2-135)
b. Variable Bandwidth
c. +40 dBmV Output level (average meas.)
d. 16, 32, 64, 128 and 256 Modulation modes
e. -95 dBc Phase Noise @ 10 kHz
e) Dimensions (W x H x D): 1.5 x 5.25 x 10.63 in.
h) Operating Temperature: 0º to +50º C
i) Storage Temperature: -20º to +70º C
j) Humidity: 0 to 95% RH
k) RJ-45 Ethernet Connector
l) RJ-11 RS-232 Serial Data Connector
m) 12-pin Power Connector
n) Ethernet Link LED
o) Ethernet Receive LED
p) Ethernet Transmit LED
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