Relay Compositions of DTV Relay Stations

(Product code: 5282)

Front view

Outline

This equipment receives the Digital Terrestrial Broadcasting signal, and measures the CN ratio and BER. And, when the measurements exceed the set value, warning is output. The number of channels is two wave correspondences.

Feature

To observe 2 wave of Digital Terrestrial Broadcasting signal at the same time.
The parameter of two waves, “Frame sync, reception C/N, BER of each hierarchy, the TS signal, and EWS” are observed at the same time. And each state of the parameter is output from point of contact and LAN.

To mount 2 reception units.
2 wave of (corresponds to UHF all channels) are inputted and observed at the same time. IF signal or RF signal is switchable.

To observe and control by LAN function.
The numerical data of each observed item is output. The reception channel, the threshold of warning, and the noise adding equipment can be controlled.

Structure

JIS rack mounting type
External size: 480(W) x 49(H) x 310(D)mm (Excluding protrusions)
Mass: 4.5kg or less

Accessory

Name of article	Specification	Num	Remarks
AC Power supply cable	With 2PIN connector Length:1.8m	1	－
DC Power supply cable	With 4PIN connector Length:1.8m	1	A part is unprocessed
Fuse	125V 2A	2	For AC
Fuse	125V 2A	2	For DC
ALARM cable	With D-sub 25PIN Length:1.8m	1	A part is unprocessed

Specification

RF input	Number	2
	Method	Conforms to ARIB STD TR B-14
	Channel	Specified UHF channel
	Impedance	75Ω (Unbalance)
	Level	-20dBm to -67dBm
	Connector	BNC type
IF input	Number	2
	Method	Conforms to ARIB STD TR B-14
	Frequency	37.15MHz
	Impedance	50Ω (Unbalance)]
	Level	-10dBm±5dB
	Connector	BNC type
Alarm output	Number of contact	Each 9(SYNC, C/N ALM, BER ALM, Logical add BER ALM of each hierarchy, TS ERR, EWS, Power supply)
	C/N DC output	Each 1 / 0V to 5V(18dB to 38dB Design value)
	C/N settable range	0dB to 40dB
	BER settable range	1.0E-3 to 9.9E-8
	Connector	D-Sub 25p S
Power supply voltage	AC	100V±10% or less (50/60Hz)
	DC	+48V±15% or less
Power consumption		27VA or less(AC100V), 15W or less(DC+48V)
Environmental requirements	Temperature	-10°C to +45°C
	Humidity	45% to 85%RH (Without dew.)

Others

Communication control function	Content	Various settings and status readingC/N, Measuring BER, Measuring BER by adding noise
	Interface	10BASE-T or 100BASE-TX
	Protocol stag	TCP/IP
	Connector	RJ-45
Fluorescent indicator	Setting item	Channel, C/N and alarm threshold of each hierarchy, Latch, IP address
	Indicating item	Channel, C/N, BER of each hierarchy
Indicate LED		SYNC, C/N, BER(Logical add of each hierarchy), TS