Telex Dollhouse sc 600 User Manual

®
TELEX COMMUNICATIONS, INC. 12000 Portland Ave. South, Burnsville, MN 55337  
Telex  
SC-600  
Instruction Sheet  
CAT. NO. 71197000  
AMPLIFIED BROADBAND UHF  
ANTENNA SPLITTER-COMBINER  
PN 801547  
General Description  
It also features a high degree of output isolation;  
a necessity in multi-frequency systems to pre-  
vent intermodulation  
The SC-600 Amplified Broadband Split-  
ter-Combiner makes it possible to operate eight  
UHF wireless intercom transceivers using only  
two antennas.  
DO NOT attempt to install and/or turn on the  
power to the SC-600 until you have read com-  
pletely and understood this manual.  
SPECIFICATIONS  
Frequency Range ....................................................................................................520-760 MHz  
Antenna Connectors...........................................................................Standard TNC Receptacles  
AC Power Input........................................................................110\220 VAC 50\60Hz, 130 VA  
DC Power Output: ..................................................................................................15 VDC 1.3A  
Size (Approximate)...............H: 3.50" (88.9mm), W: 17.00" (431.8mm) D: 12.50" (317.5mm)  
Weight: (Approximate).......................................................................................................15 lbs.  
Antenna Splitter  
3rd Order Intercept Output:.........................................................................Greater than 28 dBm  
Net Gain............................................................................................................Greater than 2 dB  
Noise Figure..........................................................................................................Less than 4 dB  
Output Isolation..............................................................................................Greater than 20 dB  
Antenna Combiner  
Net Gain.................................................................................................................................0 dB  
Noise Figure.................................................................................................................10 dB Typ  
3rd Order Intermodulation .........................................................................-55 dbm @ + 13 dbm  
Input, Each Transmitter  
SC-600 Product Features:  
· Ideal compliment to your BTR-600/BTR-500 UHF Wireless Intercom System  
· Standard IEC 320 Power Input Connector  
· Power Output for up to eight transceivers help make your whole system easier  
to handle  
· High-quality TNC Connectors ensure consistent impedance across the entire  
frequency range  
· Rack Mount Brackets included for 19" (482.6mm) rack  
-1-  
 
RECEIVE  
ANTENNA  
TRANSMIT  
ANTENNA  
DC  
OUTPUT  
RECEIVE  
TRANSMIT  
TRANSMIT  
ANTENNA  
RECEIVE  
ANTENNA  
110/220 VAC INPUT  
FUSE: F 1.5A 250V  
TRANSMIT  
RECEIVE  
TRANSMIT  
RECEIVE  
POWER  
POWER  
TRANSMIT 2  
TRANSMIT 1  
TRANSMIT  
TRANSMIT  
TRANSMIT  
RECEIVE  
TRANSMIT  
TRANSMIT  
TRANSMIT  
RECEIVE  
POWER  
POWER  
TRANSMIT 4  
TRANSMIT 3  
RECEIVE  
RECEIVE  
POWER  
POWER  
TRANSMIT 6  
TRANSMIT 5  
RECEIVE  
RECEIVE  
POWER  
POWER  
TRANSMIT 8  
TRANSMIT 7  
Figure 2  
System Configuration  
-3-  
 
Antenna Requirements  
Good results may be obtained with 1/2 wave an-  
tennas (See Figure 5). All antennas are sold sep-  
arately.  
The SC-600 may be used with a variety of an-  
tennas. For best results, use a pair of ALP-450  
directional log periodic antennas (See Figure 3)  
or, the ALP-600 Bi-directional log periodic an-  
tenna (See Figure 4).  
When using 1/2 wave antennas, we recommend  
using the higher frequency model when the re-  
ceivers operate in more than one band. If the re-  
ceivers are more than one band apart, such as  
yellow and white, we strongly recommend using  
the ALP-450, or ALP-600 depending on the ap-  
plication.  
R
ex  
el  
T
ALP-450  
THIS END TOWARD TRANSMITTER  
Telex  
Figure 5  
1/2 Wave Antenna  
Figure 4  
ALP-600  
Figure 3  
ALP-450  
1/2 Wave Antenna Placement  
If 1/2 wave antennas are mounted directly to the  
SC-600, they should be configured as shown in  
Figure 6.  
Do not rack mount the SC-600 in this config-  
uration. Serious loss of range and perfor-  
mance may occur.  
Place the SC-600 with antennas in a location  
that is in direct view of the transmitters for best  
results.  
DC  
OUTPUT  
RECEIVE  
TRANSMIT  
TRANSMIT  
ANTENNA  
RECEIVE  
ANTENNA  
110/220 VAC INPUT  
FUSE:  
F
1.5A 250V  
Figure 6  
1/2 Wave Antenna Mounting  
-4-  
 
Antenna Placement  
Rack Mounting  
for Optimum Range and Rack Mounting  
NOTE: The SC-600 should always be  
mounted on the bottom of the rack to fully  
support the chassis. Failure to do this may re-  
sult in damage to the SC-600.  
For maximum range and when rack mounting,  
the antennas must be remotely located.  
The ALP-450 and ALP-600 antennas come com-  
plete with a variety of mounting hardware and  
10 feet (3 meters) of low loss coaxial cable. A  
combination mounting bracket with 10 feet of  
coaxial cable is available for the 1/2 wave an-  
tenna (Model No. AB-2).  
Rack mount brackets are supplied with the  
SC-600. To attach the brackets, proceed as fol-  
lows:  
Antennas should be placed in a location with a  
clear “signal path” to the transmitter. This  
“path” should be as short and free of obstruc-  
tions as possible. Obstructions, such as walls  
ceilings, and metal objects, will reduce range  
and performance.  
· Align the rack bracket with the holes on  
the side of the unit. See Figure 7.  
· Install flat head machine screws in two  
holes. Tighten securely. Repeat on the  
other side of the unit. For best alignment,  
perform the above steps while the unit and  
rack brackets are setting on a flat surface.  
· Insert the unit into a 19" rack enclosure  
and insert four #10-32 x 3/8" Phillips pan  
head screws (supplied) in each corner of  
the rack mount brackets and secure.  
Coax Cable  
For best results, it is recommended that cable  
losses be kept under 4 dB. (Every 3 dB of signal  
loss results in a system operating distance reduc-  
tion of 25%.  
See the accessories section of this manual for  
special low loss cable assemblies.  
Figure 7  
Rack Mounting  
-5-  
 
SC-600 Accessories and Replacement Parts  
R
ex  
el  
T
ALP-450  
Telex  
THIS END TOWARD TRANSMITTER  
ALP-450  
ALP-600  
450-900 MHz Log Periodic Antenna  
Includes mounting hardware and 10 feet (3 me-  
ter) coaxial cable with TNC connectors  
Order No. 71147000  
520-760 MHz Bi-Directional log periodic antenna  
Includes mounting hardware and 10 feet (3 me-  
ter) coaxial cable with TNC connectors  
Order No. 878896  
1/2 wave Antenna  
Special low loss antenna cables with  
TNC connectors  
Model  
Length  
Order No.  
CXU-10 10 Ft. (3 meter)  
690419  
CXU-25 25 Ft. (7.6 meter) 71151-025  
CXU-50 50 Ft. (15 meter) 71151-050  
CXU-75 75 Ft. (23 meter) 71151-075  
CXU-100 100 Ft.(30 meter) 71151-100  
Model No. Part No. Band Color  
Frequency  
CLA-1  
CLA-2  
CLA-3  
CLA-4  
CLA-5  
CLA-6  
870658-1  
870658-2  
870658-3  
870658-4  
870658-5  
870658-6  
Blue  
Yellow  
Red  
White  
Green  
Orange  
520-564.9 MHz  
565-614.9 MHz  
615-659.9 MHz  
660-689.9 MHz  
690-724.9 MHz  
725-760 MHz  
TP-2 50 OHM/TNC dummy load  
(For unused outputs)  
Part No. 650095  
IEC 320 Cordsets  
Type  
Part No.  
230V 50 Hz (Euro)  
230V 50 Hz (U.K.)  
120V 60 Hz (U.S.)  
58349008  
550024004  
8800102668  
-6-  
 
Telex  
Antenna Bracket Kit  
Aluminum Brackets with vertical or horizontal  
mounting capability  
Order No. 878898  
Antenna Mast  
Four section, clear anodized aluminum mast  
with extended length of 90 1/4"  
Order No. 878897-1  
(Antenna not included)  
PRINTED IN U.S.A.  
Copyright© 2001 by Telex  
TELEX COMMUNICATIONS, INC.  
All rights reserved  
NOV 2001  
-7-  
 

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