OTPN-MDN-870 - Fiber Optic Mini Digital Node
Features/Benefits
Smallest full-featured
node on the market!
CATV
50 to 870MHz forward bandwidth
accommodates up to 110 channels
on all models.
Up to +38dBmV RF output signal
over the entire optical input range,
allowing a greater number of
drops or splits.
Excellent CATV performance
with CNR up to 54.5dB, CSO of
-63dB, and CTB of -66dB.
Ultra-wide usable optical input
range, -8dBm to +2dBm, permits
the use of a lower power transmit-
ter, lowering system cost.
Built-In digital optical power meter
for easy setup and maintenance.
Capable of responding to changing
system requirements with
field-installable return path
modules.
Digitally adjustable built-in RF
attenuator and equalizer settings
allow for accurate adjustment of
parameters via front panel buttons
and the LCD screen.
SC/APC optical connector stan-
dard. FC/APC option available
(contact factory).
The Olson OTPN-MDN-870 Fiber Optic Mini Digital Node
(MDN) provides CATV headend operators with a unique node
with an extensive array of features, small size and low-cost.
The MDN is fully compatible with Olson’s line of forward path
transmitters and return path receivers. The MDN provides an
output of +38 dBmV of RF over the entire optical input
range, allowing multiple RF splits without the use of an
external RF amplifier. The Mini Digital Node is unique
because it operates over a ultra-wide optical input range of -
8dBm to +2dBm without degrading performance.
A unique built-in LCD display and digital control buttons
allow the operator to quickly and easily set the tilt and RF
output levels of the unit. There is no need to open the MDN to
replace fixed pads and equalizers. The unit remembers
specific settings even if power is lost. The OTPN-MDN-870
can be ordered either with or without a return path module.
The return path module may also be ordered separately,
allowing for a quick factory upgrade or laser replacement.
The return path module utilizes a wide variety of laser types
including 1310nm DFB, 1550nm DFB and CWDM DFB lasers.
The modular design of the MDN offers unparalleled flexibility
and performance demanded by today's broadband profes-
sional.
The unit includes separate -20dB test points for the forward
and reverse RF signals. An alarm signal and an analog signal
proportional to the light level are also provided. The node
ships with the mating universal AC power supply.
www.olsontech.com
Rev D
All Specifications Subject to Change Without Notice
31 Aug 2011
Advanced Optical Components
Optical and Electrical Characteristics
(with SM 9/125µm Fiber)
Receiver
Operating Wavelength
Optical Input Power
Channel Loading
Bandwidth
Flatness (peak-to-valley)
RF Output Level
Output Return Loss (No Rtn Tx)
Output Return Loss (w/ Rtn Tx)
Output Impedance
Backreflection Tolerance
Composite Second Order (CSO)
Composite Triple Beat (CTB)
Return Path Modules
Operating Wavelength
Operating Wavelength
Optical Output (DFB Laser)
Optical Output (CWDM Laser)
Bandwidth
Min
1290
-8.0
50
Typ Max
1610
+2.0
110
870
2
+38
16
14
75
-50
-63
-66
Typ Max
1310 1330
1550 1610
3.0
3.0
42
Units
nm
dBm
Ch.
MHz
dB
dBmV
dB
dB
Ohms
dB
dBc
dBc
Units
nm
nm
mW
mW
MHz
Electrical and Environmental
Characteristics
Min
Power Supply Voltage
Power Dissipation
Operating Temp. Range
Storage Temp. Range
Humidity
+10
0
-20
5
Typ
+12
10
Max
+15
+55
+70
95
Units
V
DC
Watts
°C
°C
%
Physical Characteristics
Min
Weight
Dimensions
Typ
Max
Units
oz.
g
in
mm
10
285
8.45 x 2.95 x 1.75
215 x 75 x 44.5
Min
1290
1470
5
Designing at the Speed of Technology
OPTICAL
INPUT
Invisible laser
radiation emitted
from this connector.
OTPN-MDN-870
MINI Digital NODE - FIBER OPTIC RECEIVER
AVOID EXPOSURE
INVISIBLE LASER RADIATION —
AVOID DIRECT EXPOSURE TO BEAM
Indium Gallium Arsenide Phosphide
3 mW maximum power output
CLASS IIIb LASER PRODUCT
WAVELENGTH
SERIAL NUMBER
UP
1470nm (Return Tx)
2007001
+12V
DC
Gnd
Opt Status
Rcv Opt Pwr
OPTICAL
STATUS
RF CONTROL AND DISPLAY
Quality / Engineering / Innovation
DOWN
RF
OUTPUT
EQ: Flat ATN:13dB
OPT IN: -3.2dBm
SELECT
RF TEST
(-20 dB)
PART NUMBER
OTPN-MDN-870
RF RETURN TEST
(-20 dB)
Note: OTPN-MDN-870 nodes ship with the mating
universal AC
power supply, Model OTPS-12A-4W
OPTICAL
OUTPUT
Figure 1 - Typical CNR with Six Different Channel Loadings
OTPN-MDN-870 Part Numbers
Configuration
No Return Path Tx
1310nm DFB, 3.0mW
1550nm DFB, 3.0mW
CWDM DFB, 3.0mW
Node with Return Tx
OTPN-MDN-870-NN
OTPN-MDN-870-NB
OTPN-MDN-870-NC
OTPN-MDN-870-ND/xx
OTPN-MDN-870-TB
OTPN-MDN-870-TC
OTPN-MDN-870-TD/xx
Return Tx Only
xx = CWDM wavelength. e.g. 47 = 1470nm. Valid values are 47, 49, 51, 53, 55, 57, 59 & 61
www.olsontech.com
Rev D
All Specifications Subject to Change Without Notice
31 Aug 2011
