ORA
300-85
24710121
Mini node Features ■ Low cost fibre FTTB mini node ■ To distribute CATV frequency multiplexed signals ■ Internal LED display for correct optical input level ■ Optical plug connector: SC/APC ■ Constant light balance control (AGC) ■ Downstream level adjustable via JXP plug-in: 98 ... 113 dBµV (in 1 dB steps) ■ Pre-emphasis adjustable via JXP plug-in: 0 dB ... 10 dB (in 1 dB steps) ■ Return path input signal adjustable: 75 ... 105 dBµV (in 1 dB steps) ■ Integrated diplex filter 85/105 MHz ■ Integrated high pass filter (ingress filter), 15 MHz ■ Plug-in optical return path transmitter ■
Basic safety precautions • Installation must be carried out only by authorised specialist staff in compliance with the laws and regulations of the respective country. • Always disconnect the power plug during installation. • The mini nodes described are exclusively for installation of HFC networks up to 1006 MHz. • Any other use or failure to comply with these instructions will invalidate the warranty. • The mini nodes may only be installed in dry indoor areas. Do not install on or against highly combustible materials. • The mini nodes must be provided with an equipotential bonding wire (Cu, at least 4 mm2). • The safety regulations set out in the current EN 60728-11 and EN 60065 standards must be complied with. • Before assembly, the equipment must be checked for damage. If the equipment is defective, it is impermissible for it to be taken into service. Should there be any damage or any other defect, the equipment must not be installed. • Unauthorised opening and modifications of the equipment will invalidate the warranty and claims. • The electrical installation must be performed according to VDE 0100 or to the laws and regulations of the respective country. • The mini node supply voltage is 230 V AC and is a serious danger to life in the event of direct physical contact! • The only reliable method of disconnecting mini nodes from the mains is to unplug them. • Do not touch live parts. • The power plug must be easily operable as the means of cutting power to the mini nodes, meaning the wall outlet must be close to the mini nodes and easily accessible. • The power must be switched off when installing or removing the mini nodes. • The mini nodes must not be operated without the standard fitted power supply unit guard cover. The cover must be closed. • No liquid filled items may be placed on top of the mini-nodes. • The mini nodes must not be exposed to dripping or splashing water. • The permissible ambient temperature is –5 to +50 °C Never look directly into the laser beam, or use optical instruments to do so! So as to prevent an uncontrolled release of the laser beam, fit the dust caps provided over the optical connections immediately after the connection has been separated. Looking at the tip of a connector when the equipment is switched on risks serious injury to the eyes. Therefore, before any work of this kind, always switch off the equipment. Use a light meter to check that the fibre optic cable is not carrying a laser beam. Comply with all safety instructions!
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Set up Upstream (US):
Downstream (DS)
Operating mode
Output level:
• CW mode: Laser is switched on permanently
The output level of the mini node is kept constant via light power control and can be set by using a JXP plug-in in 1 dB steps from 98 dBµV to 113 dBµV. If there is no JXP plug-in inserted the attenuation is automatically switched to 5 dB.
US attenuator • 0 – 20 dB as JXP plug-in and 10 dB bridge.
Sloping position:
Test socket operation: The test socket can be used to determine the correct input loss to be set for an optical modulation index of 12 % depending on the external loss between the modem and the mini node. The input loss can be adjusted by using a JXP plug-in and the 10 dB bridge in the upstream path.
The sloping position of the output level of the mini node can be varied with a JXP plug-in in 1 dB step between 0 and 10 dB. If there is no JXP plug-in inserted the slope is automatically switched to 5 dB.
The setting options are, as shown in the illustration example, also printed on the cover plate.
Block diagram
SC/APC
O
E1
A1
OPTICAL RECEIVER AGC
JXP
JXP
E AUTOLINK
AUTOLINK
5dB
5dB
A2 JXP
TP -20dB SC/APC
O
E
DPF
HPF
15MHz
RETURN PATH TRANSMITTER REVERSE
AUTOLINK
10dB TP -20dB
5dB EBC
Outside TP
PORT2
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PORT1
Installation Transmitter OSR 303-Cxx To install the transmitter OSR 303-Cxx please plug the module into the designated port. The fibre cable layout should be as per the picture. The status LED on the transmitter shows 3 states: – Green = OK – Red = failure – Yellow = aging (please replace)
Output plug-in slot When closing the cover take care that the fibre optic cable is not trapped and thereby damaged!
The ORA 300-85 supports up to two output ports via splitter/tap The fibre cable layout should be as per the picture. Plug-ins: – EBC 90-1G2 BN 24510214 – EAC 93-1G2 BN 24510216 – EAC 94-1G2 BN 24510220
JXP slots for attenuation and slope plug-ins
Output plug-in slot
Transmitter OSR 303-Cxx plug-in slot
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78,5 78.5
218 180
Hexagon socket-head screw AF = 5 mm Tightening torque MA = 5 – 6 Nm
Potential equalisation: Clamping range: 4 – 6 mm2 Screw with Z2 cross-head and 1.2 slot
Distances from adjacent surfaces: a) ≥ 150 mm b) ≥ 50 mm
190 190
142 142
a)
b)
b)
a)
200 200
Current carrying unit! Always disconnect the power plug and switch off the remote feed prior to installation. Safety regulations to EN 60728-11, EN 60065 and EN 60950 must be complied with. Mount the amplifier vertically with the cable input facing down. Ensure sufficient air circulation around all sides. Install correctly in accordance with EN 60728-11. The connected network must be earthed in accordance with regulations, even if the amplifier has been removed. Only qualified personnel are permitted to perform servicing work. – The specified torques must be adhered to for compliance with the electrical and mechanical data. – Wall attachment to be performed using dowel screws with a thread diameter of 5 – 6 mm If the cable inner conductor diameter is greater than 1.2 mm, or in case of burr, the device sockets may be damaged beyond repair.
Max. projection 2 mm Tightening torque 3.5 Nm max. (overwinding risk)
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Diameter 0.6 – 1.2 mm burr free
Technical Specification Type
ORA 300-85
Part no.
24710121
Forwards path [MHz]
105 – 1006
[nm]
1261 ... 1611
Photodiode sensitivity
[A/W]
0.9
Optical input level band
[dBm]
−6 ... +1
Optical modulation index
[%]
4.4
Frequency range Optical wavelength
Number of outputs
2 [dBµV]
110 ±1.5
Frequency response
[dB]
±0.75
Pre-emphasis adjustable
Output level @ 1 GHz at 4.4 % OMI, adjustable, one output
[dB]
0 ... 10
Output level for CSO 60 dB to CENELEC 41 Pin = 0 dBm
[dBµV]
113
Output level for CTB 60 dB to CENELEC 41 Pin = 0 dBm
[dBµV]
113
Impedance
[Ω]
75
Return loss (fstart = 105 MHz)
[dB]
≥18 –1.5/Oct.
[dB]
20
[MHz]
5 – 85
[nm]
1270 ... 1610 (CWDM C01 ... C18)
Optical output power
[dBm]
+3
Input level for OMI 12 %, IS-switch = 0 dB, no plug in
[dBµV]
75
Input level range
[dBµV]
65 – 105
Frequency response
[dB]
±1
Impedance
[Ω]
75
Return loss (10 – 65 MHz)
[dB]
20
Loss test socket (external)
[dB]
0
[V AC]
180 ... 253
Loss test socket (internal) Return path Frequency range
Return path laser Optical wavelength
DFB
Power Supply Input voltage range Rated power
[W]
17
Mains input frequency
[Hz]
50 – 60
[°C]
−5 ... +50
Temperature range Ambient temperature General RF output Dimensions (W x H x D) Weight
F socket [mm]
218 x 80 x 150
[kg]
1.4
Casing material
Zinc-cast aluminium
Protection class (EN 60529)
IP 43
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Standards applied EN 50083-2
Cable distribution systems for radio and TV broadcast signals part 2: Electromagnetic compatibility of equipment
EN 60529
Protection classes through the casing
EN 60728-11
Cable networks for TV signals, radio signals and interactive services; part 11: Safety requirements
EN 60825
Safety of laser devices
EN 60065
Audio, video and similar electronic devices / safety
Electronic equipment is not household waste - in accordance with directive 2002/96/EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL of 27th January 2003 on used electrical and electronic equipment, it must be disposed of properly.
All data shown are typical values.
At the end of its service life, take this receiver to a designated public collection point for disposal.
www.kathrein.com
936.5075/-/VMPT/1015/GB - Technical data subject to change.
KATHREIN-Werke KG • Anton-Kathrein-Straße 1 – 3 • P.O. Box 100 444 • 83004 Rosenheim • GERMANY • phone +49 8031 184-0 • Fax +49 8031 184-306
