optical node and receiver for hybrid fiber coax (hfc
TRANSCRIPT
Constant output level with OLC Signal adjustments with fixed values Aluminium chassis Energy-efficient
OUTDOOR OPTICAL NODE AND RECEIVERREF. 231082 and 231282
OPTICAL NODE AND RECEIVER FOR HYBRID FIBER COAX (HFC) OPERATORS
OPTICAL LEVEL
CONTROL
ALUMINIUM CHASSIS
OUTDOORS EFFICIENT ENERGY
CONSUMPTION
televescorporation televes.com [email protected]% Designed, Developed & Manufactured in Televes Corporation
The coaxial backbones of the operator networks are being replaced with opti-cal fiber lines. The optical network ends where the subscriber's coaxial network is serviced. These networks that use both transmission media are known as HFC networks (Hybrid Fiber Coaxial).
A device is required to work as an in-terface between the optical backbone and the coaxial network where both media meet; this device is the Optical Node.
This device transforms the downstream optical signal into a radio-frequency signal; furthermore, it transforms the radio-frequency signal produced by the cable-modem and/or the user's STB (re-turn channel) into an upstream optical signal.
Occasionally, when communication is exclusively downstream, an optical re-ceiver is installed instead of the optical node to transform optical signals into radio-frequency signals.
Optical nodes and receivers from Televés include OLC (Optical Level Control), a system capable of preserving the radio-frequency signal regardless of the optical input power.
DESCRIPTION
OUTDOOR OPTICAL NODE AND RECEIVER
HIGHLIGHTS
Equipped with OLC (Optical Level Con-trol), which automatically regulates its parameters to provide a constant out-put level regardless of the channel load
Configurable return channel with at-tenuator and equalizer
Forward channel with independent attenuation and equalization adjust-ment between stages
High output voltage, low power con-sumption
Perfect for RF Overlay, FTTx applications
Parameter values are adjusted using plug-in jumpers included (equalization, attenuation, etc.)
Test port
Full bandwidth optical reception
Aluminium chassis ensures durability in outdoor installations
Main features
JUNE 2017
REF. DESCRIPTION EAN 13
231082 OUTDOOR NODE CATV OLC W/RET 1610nm LOCAL 8424450182833
231282 OUTDOOR F.O. RX MATV OLC W/O RET.P LOCAL 8424450188842
3
Optical node and receiver for HFC operators
AP
PLI
CA
TIO
N E
XA
MP
LE HFC networks with optical node
HFC network in which the optical node is the media converter between a DOCSIS headend and the CPE. The forward channel is 1550nm and the return channel is 1610nm.
F.O.
RECE
IVER
TEST(-30dB)
RF1
RX1 OPTICAL PWR
ALARM
02
4680112
14
PWR
RX2 OPTICAL PWR
RX1
RX2
Dual
retu
rn p
ath
RF OUTLEVELADJ RX1
RF OUTLEVELADJ RX2
AGCMODEON
AGCMODEON
TEST(-30dB)
RF2
02
4680112
14
Ref
. 515
0R
epar
t. 2
Sal.
/ 2 W
ay S
plitt
er
5 -
862
MH
z: 4
dB
950
- 24
00 M
Hz:
5 d
B
IN
F. O
. SPL
ITTE
R 1/
8
LASER APERTUREInvisible laser radiation.
Do not watch directly with optical instruments.Class 1M laser product.
OUT
1 5
4 8
3 7
2 6
OUT
1610nm
AMPLIFICADOR CATVCATV AMPLIFIER
Ref.451302
12
12
12
P1
P2RTN-48V
RTN-48V
F. O.
TRA
NSM
ITTE
R
PWR
CTRL
PWR
MUX
DVB
T2-C
OFDM
CI T
WIN
MUX
DVB
T2-C
OFDM
CI T
WIN
MUX
DVB
T2-C
OFDM
CI T
WIN
MUX
DVB
T2-C
OFDM
CI T
WIN
MUX
DVB
T2-C
OFDM
CI T
WIN
OUTPUTTEST
RFINPUTS
SUBRACK PASSIVE COMBINER
-20 dBCABLE MANAGEMENT
7654321
251 262 273 284 295 306 317 328 339 3410 3511 3612 3713 3814 3915 4016 4117 4218 4319 4420 4521 4622 4723 4824
ALIMENTACIÓN CATVCATV P.S.U
Ref.5456
184 - 253 V 50/60 HzP.Max.:375W 57V 5Amax.
P. max 16W I. max 235mA99-253V~ 50/60HzFuse: T1A L 250V
USO EXCLUSIVO EN INTERIORFOR INDOOR USE ONLY
¡¡¡ATENCIÓN!!!NO ABRIR. TENSIONES ELEVADAS DENTRO¡¡¡WARNING!!!DO NOT OPEN. HIGH VOLTAGE PARTS INSIDE
-20 dBTest
FWD. INPUT
OK - Return
20 dB20 dB
-20 dBTest INPUT
+10 dB
Passive Return Path
On20 dB
MADE IN SPAIN
GAIN SLOPE
FULL FLAT
GAIN
FULL
RET.OUTPUT
FWD. OUTPUT
RET.
REG TILT
FULL FLAT
10 dB 10 dBOK - FORWARD
Router
Switch
Internet
CMTS DOCSIS
RF Overlay combiner
TV headend
Optical node (Ref. 231082)
CATV line amplifier (Ref.451380)
DTKom amplifier (Ref.451280)
1
2
3
FOW.C._TVRET.C.
FOW.C._DOCSIS
1610nm
1550nm
RET.C.FOW.C.
FOW.C.
1 T.0X RX.F.O. RET TWIN 1270...1650nm CAG (Ref.234901)
2 T.0X TX.F.O. 1550nm 10dBm (Ref.234811)
3 T.0X WDM F.O. RFoG (1610nm)-(1550nm) (Ref.234702)
CATV PSU (Ref.5456)
PSU
JUNE 2017
OUTDOOR OPTICAL NODE AND RECEIVER
TE
CH
NIC
AL
SP
EC
IFIC
AT
ION
S
De
sc
rip
tio
n
BLO
CK
DIA
GR
AM
Refs. 231082 231282
FORWARD PATH
Bandwidth MHz 54 ... 1006
Optical input level for OLC dBm -8 ... +1
Flatness dB ± 0.75
Outputs (selectable) 1 1 or 2
Output level with OLC enabled, output 1 dBmV 53
CNR/CSO/CTB dB >52/>60/>60
Input enhancer dB 4/6
Output attenuator dB 1/2/3/4/5/6/7/8
Equalizer dB 4/9
Wavelength nm 1200 - 1600
RETURN PATH
Bandwidth MHz 5 - 42 -
Optical output level dBm 3 -
Flatness dB ± 1 -
RF output level dBmV 10 ... 40 -
Wavelength nm 1610 -
GENERAL
Local mode supply voltage V~ 99 - 253
Maximum power consumption with local or remote power supply
W 16.5
Max. current consumption with local power supply mA 300
Dimensions in 9.13x 3.54 x 5.51
Weight lb 4.02
IP protection index IP 65
REF.231082
1
1
2 2 3
3
6 dB
4 dB
4 dB
9 dB
2 dB 6 dB
1 dB 3 dB
20 dB
10 dB
4
4
11 2
2 3
3
4
4
5
6
6 dB
4 dB
4 dB
9 dB
2 dB 6 dB
1 dB 3 dB
Two outs One out
AUTO <=> MANUAL
7
7
A
B C D
REF.231282
1
1
2 2 3
3
6 dB
4 dB
4 dB
9 dB
2 dB 6 dB
1 dB 3 dB
20 dB
10 dB
4
4
11 2
2 3
3
4
4
5
6
6 dB
4 dB
4 dB
9 dB
2 dB 6 dB
1 dB 3 dB
Two outs One out
AUTO <=> MANUAL
7
7
A
B C DE
1 Enhancer
2 Equalizer
3 Forward channel attenuator
4 OLC switch
5 Manual gain control for OLC = MANUAL
6 Test port
7 1 output / 2 outputs selection
A Power supply
B Optical fiber input
C RF2 Input/Output
D RF1 Input/Output
E N/C
WDM
Pre-AmpPre-AttOLC+TIA Forward slope
Forward att. Amp
DiplexerCoupler
Test 1
Out 1
Test 2Amp Return-Att
Pre-AttOLC+TIA Pre-AmpForward
slopeForward
att. Amp
Coupler Splitter
Test 1
Out 1
Out 2
Filter
REF.231282REF.231082
1 Enhancer
2 Equalizer
3 Forward channel attenuator
4 Return channel attenuator
A Power supply
B Optical fiber input
C Test port
D RF1 Input/Output