24926 Highway 108
Sierra Village, CA 95346
Phone: (800) 545-1022
Fax: (209) 586-1026
E-Mail: sales @olsontech.com
LaserLite Model OTOT-870 Standalone or 1RU 19" EIA
Rack-Mount 1310nm Optical Transmitter
Rugged and compact CATV
fiber optic transmitter.
Available RF bandwidth of 48-
870MHz supports most analog and
QAM digital broadcast transport
applications.
Wide range of 2mW to 31mW DFB
laser options for Tx launch powers
from 3dBm to 15dBm.
Unsurpassed noise and distortion
performance at all optical powers.
External RF and optical test points
facilitate optical circuit set-up and
maintenance.
Field-configurable front or rear
panel SC/APC optical output
connector. (FC/APC optional)
The Olson Technology, Inc.
LaserLite
Model OTOT-870 1310nm
48-870MHz CATV Broadcast Transmitter is a cost-effective, high
quality, full-featured standalone or 1RU 19" EIA optical
transmitter. Designed for optical transport of analog and QAM
digital broadcast signals, the transmitter is ideal for CATV
Hybrid Fiber Coax (HFC) applications, as well as direct
transmission of CATV RF signals in Industrial, corporate,
government, educational, and other applications.
The Model OTOT-870 transmitter uses state-of-the-art RF and
optical component technology. A comprehensive lineup of DFB
laser offerings provides superior performance over a wide range
of optical budgets (up to 16dB of loss), allowing unrepeatered
spans of over 45km (28 miles) when used in conjunction with
high performance, high sensitivity node receivers such as the
Olson Technology Model OTPN-1000 or OTMN-II. Less deman-
ding applications can operate to 25dB of loss or 70km (43 miles)
distance.
The rugged, self-contained OTOT-870 provides exterior RF input
and optical output connections, plus front panel RF and laser
test points. The field-configurable SC/APC (or optional FC/APC)
optical output connector can be mounted on the front or rear
panel of the unit. The OTOT-870 is cooled with forced air via an
external high MTBF fan designed to be field-replaceable without
interrupting operation. The stand-alone unit can be rack-
mounted using the Model OTLL-RMKIT-1 to mount up to three
OTOT-870’s in a 1RU (1.75") 19" space.
The Model OTOT-870 is the perfect companion to Olson
Technology’s OTPN-1000 and OTMN-II optical nodes. It is also
designed to operate with optical receivers from most leading
manufacturers. The companion OTOR-300 return receiver
works with all RF return path optical transmitters in the 5MHz to
300MHz frequency range.
Self-contained, low profile, rugged
flange mount package.
Optional 19” EIA rackmount kit for
up to three (3) transmitters on a
1RU chassis panel.
Low power consumption, runs
cool, integrated 90-240V
AC
power
supply. (24V
DC
optional)
Rev E
All Specifications Subject to Change Without Notice
June 2009
System Specifications
RF and System Characteristics
Frequency Range
Frequency Response
Input Impedance
Input Return Loss
Input Level (+3 to +6dBm)
Input Level (+8 to +15dBm)
CSO
CTB
Input Adjustment Range (1)
RF Test Point (2)
Min
48
-1.0
16
+18
+19
60
63
4
+10
Typ
Max
870
+1.0
Units
MHz
dB
Ohms
dB
dBmV/ch
dBmV/ch
dBc
dBc
dB
dBmV/Ch
Electrical and Environmental Characteristics
Power Supply Voltage
Power Supply Frequency
Power Consumption
Operating Temp. Range
Humidity (RH Non Con.)
Cooling
Power Connector
Min
+90
50
Max Units
+240
V
AC
60
Hz
10
W
-10
+55
°C
5
95
%
Forced Air Fan
Field-replaceable
IEC 320 w/ 5x2.0 0.5A
Slo-Blo Fuse
Typ
75
Physical Characteristics
Min
Weight
Dimensions (W x H x D)
Typ
Max Units
1.5
lbs.
0.68
kg
5.5 x 1.6 x 7.5
in.
140 x 41 x 191
mm
NOTES:
1) To +22dBmV/carrier.
2) Set for 77 analog channels, full QAM digital loading.
Transmitter Interfaces
RF Input Connector
Optical Output Connector
Optical Power Test Jack
Laser Current Test Jack
F-type.
SC/APC std, FC/APC opt,
front or rear panel.
0.1V/mW
1V/50mA
Typical CNR Performance
Rx Power
(dBm)
Low Ch. Load (77 NTSC) CNR (dB)
All Passive
Passive
+3.5dB Fiber
Passive
+7dB Fiber
High Ch. Load (110 NTSC) CNR (dB)
All Passive
Passive
+3.5dB Fiber
Passive
+7dB Fiber
Notes
1) For example, a +8dBm transmitter thru 10dB of
passive optical loss with
Low Ch. Load
would be
looked up as “-2dBm” in the first column in this
case yielding 53.0dB typical CNR.
2) Loading refers to total modulated analog channels
loading. Power levels are per channel peak
envelope power.
3) All CNR is measured at +18dBmV/carrier.
(Note 1)
+2dBm
+1dBm
0dBm
-1dBm
-2dBm
-3dBm
-4dBm
56.0
55.5
55.0
54.0
53.0
52.0
51.0
55.1
54.6
54.1
53.1
52.1
51.1
50.1
54.3
53.8
53.3
52.3
51.3
50.3
49.3
55.0
54.5
54.0
53.0
52.0
51.0
50.0
54.1
53.6
53.1
52.1
51.1
50.1
49.1
53.3
52.8
52.3
51.3
50.3
49.3
48.3
Ordering Information
OTOT-870-3-XX
OTOT-870-6-XX
OTOT-870-8-XX
OTOT-870-9-XX
OTOT-870-10-XX
OTOT-870-12-XX
OTOT-870-13-XX
OTOT-870-14-XX
OTOT-870-15-XX
Optical Transmitter, 1310nm, +3dBm Optical Output
Optical Transmitter, 1310nm, +6dBm Optical Output
Optical Transmitter, 1310nm, +8dBm Optical Output
Optical Transmitter, 1310nm, +9dBm Optical Output
Optical Transmitter, 1310nm, +10dBm Optical Output
Optical Transmitter, 1310nm, +12dBm Optical Output
Optical Transmitter, 1310nm, +13dBm Optical Output
Optical Transmitter, 1310nm, +14dBm Optical Output
Optical Transmitter, 1310nm, +15dBm Optical Output
Note: :
The “XX” in the part numbers specifies the optical connector type. SA = SC/APC; FA = FC/APC.
Rev E
All Specifications Subject to Change Without Notice
June. 2009
