MOUNTING THE RX4000.
Before mounting the unit, connect the antenna to the screw-on SMA connector on the end of the RX4000. DO NOT WRENCH or
OVERTIGHTEN the antenna, hold the antenna in the desired position and tighten the knurled section.
The RX4000 can be simply set on a table top, or permanently mounted to a wall using the swivel mount supplied which screws into the
threaded mounting hole on the back of the RX4000. Position the antenna based on how the unit is going to be mounted. Tests show
the range is optimized when the unit is wall mounted with the antenna pointing up.
For best performance:
1. The antenna should be vertical, or pointing up.
2. Avoid setting the unit on a metal table, or housing it in a metal type podium.
3. Mount the unit so it has a clear line-of-sight to the seats in the classroom.
Using multiple RX4000 base units in a large room.
In general, connecting multiple RX4000 base units within range of each other (where one remotes signal is received by multiple base
units) will not affect system performance. The remotes signal (i.e. students response) will always be accepted and processed (i.e. sent
to the computer) by all RX4000 base units that received the signal. H-ITT’s software provides for duplicate transmissions so the
students “answer” is received and processed correctly. However the remotes “green light” acknowledgement may be affected. Typically
if a student does not get the “green light” they will try again, in which case the rare occasion of acknowledgement interference will not
occur, and they get the green acknowledgment light on the second input. Or if you are displaying the ID grid or marquee the student will
see their response has been accepted via the projector screen.
There are several options to install and connect multiple RX4000 within a classroom. First you need to consider which H-ITT response
software you will be using:
H-ITT CRS software can accept multiple com ports simultaneously, so multiple RX4000’s connect to any open com port.
H-ITTShow software requires all responses come into a single com port, so multiple RX4000’s can not be used.
The classroom dimensions or layout may affect how you locate and connect multiple RX4000 units.
The following provides some guidelines, however it is recommended that you contact H-ITT support for specific installations when
multiple RX4000 base units are necessary.
Connecting a long data cable to a second RX4000:
From the RX4000 serial data port connect a female DB9 to RJ45 converter (part # AC-ADPT-F) to the serial connector. Then route
CAT5 cable from the RX4000 to the computer and use a CAT5 to serial adapter (part # AC-ADPT-M) to connect to the computer. You
can directly connect this to a serial port, or use a serial to USB converter cable. H-ITT does not sell these converter cables, but most
any commercially available serial to USB converter will work. H-ITT has tested CAT5 data connections as described above for
distances over 300 feet at 19.2K baud. CAT5 cables in various lengths, and CAT5 couplers (to link cables together) are available from
H-ITT. The serially connected RX4000 will also need the power adapter.
Connecting long USB cables:
You may connect USB cables over the typical 16 foot limit when the serial baud rate is set at 19.2K. Using a 16 foot USB cable (part#
AC-USB-16) with a USB extender cables (part# AC-USB-EX16) you can connect two RX4000 base units more than 100 feet apart.
Depending on the classroom layout (relative to the computers location) this may be a good option.
RX4000 Technical specifications
Length 7.07”
(179.6mm)
Width 4.92”
(125.0mm)
Height 1.40”
(35.6mm)
Weight
9.3 oz. (263 grams)
USB Port
USB-B
Serial Port
DB9
Baud rate
19.2K, 39.4K, 57.6K, 115.2K
DC power
USB or 7 to 15VDC, 100mA.
RF carrier
2.4Ghz ISM band
RF channels
31
RF data
2Mbit, NRZ format
RF Range
300 feet open field**
FCC ID
UH9RX4000
** Indoor range may be significantly less, range is
specified under controlled open field testing with TX3100..
Contact info:
Additional information regarding installation, applications and software can be found at
http://www.h-itt.com
. You can e-mail
or call toll free 1-888-322-0089 for
technical assistance with any problems installing or using your H-ITT product.
For Sales, phone: 877-244-4488, or email [email protected]
FCC ID: UH9RX4000
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC
RULES. OPERATION IS SUBJECT TO THE FOLLOWING
TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION.
THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY
RADIO OR TV INTERFERENCE CAUSED BY
UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT.
SUCH MODIFICATIONS COULD VOID THE USER’S
AUTHORITY TO OPERATE THE EQUIPMENT.
Compliant
H-ITT, LLC
420 Shearer Blvd
Cocoa, FL 32922