MIPRO ACT-71 Wideband Single-Channel True Diversity Receiver - Manual (Page 14)

1. MIPRO ACT receivers have an advanced computer network-interfaced controlling system.
2. Wiring Instructions
! The network interface of ACT-71/ACT-72/ACT-74 receivers is the ''REMOTE''
connector that can be linked to a computer by a MIPRO-DVU or MIPRO-DVJ
hardware device. By using a RS-232 or USB connector, you can link to a computer
through the RS-232 COM PORT or USB PORT. (See diagram below)
! Plug one side of the provided cable (w/ RJ-11 connectors) to the REMOTE OUT
socket on the rear of the receiver and the other end of the phone cable to the
REMOTE IN socket on the rear of the second receiver. Repeat this connection for
each receiver in the system as per the illustration. Finally, connect the REMOTE IN
socket on the rear of the first receiver to the MIPRO-DVU or MIPRO-DVJ.
! This system can link, monitor and control up to 64 receiver channels simultaneously.
! The connecting cable to the computer can be up to 300 meters (330 yards) in
length; however, signal stability decreases the longer the cable distance. Therefore,
the cable length is recommended not to exceed 100m (110 yards) to maintain the
highest quality as well as a high speed of transmission.
RX1
RX2
RX3
MIPRO DVU
MIPRO DVJ
OR
PC
CH 1 CH 2 CH 3 CH 4 MIXED
REMOTE ANTENNA A
+8V DC BIAS ANTENNA B
+8V DC BIAS OUT IN
3: COLD - 1: GND + 2: HOT 3 2 1
+16dB -6dB 0dB
LEVEL This connector can not be connected
to telecommunication networks.
BALANCED OUT AC IN PUT: 1 00~240V
CH 1 CH 2 CH 3 CH 4 MIXED
REMOTE ANTENNA A
+8V DC BIAS ANTENNA B
+8V DC BIAS OUT IN
3: COLD - 1: GND + 2: HOT 3 2 1
+16dB -6dB 0dB
LEVEL This connector can not be connected
to telecommunication networks.
BALANCED OUT AC IN PUT: 1 00~240V
CH 1 CH 2 CH 3 CH 4 MIXED
REMOTE ANTENNA A
+8V DC BIAS ANTENNA B
+8V DC BIAS OUT IN
3: COLD - 1: GND + 2: HOT 3 2 1
+16dB -6dB 0dB
LEVEL This connector can not be connected
to telecommunication networks.
BALANCED OUT AC IN PUT: 1 00~240V
Connect to RS-232 jack on PC Connect to keyboard jack on PC
Connector of keyboard
should plug in here
Connect to USB
jack on PC
COMPUTER NETWORK INTERFACE OPERATION
True Diversity Receivers True Diversity Receivers
22 23
12
12
12
12
12
1. Since the installation of the antenna influences the operating efficiency of the
receiver, the most important rule is to minimize the distance as much as possible
between the receiving antenna and the microphone for the best reception and
performance.
2. Use MIPRO supplied antennas to ensure proper receiver sensitivity.
3. A built-in worldwide approved switching power supply assures stable performance in
the range of 100~240V AC power input.
4. Please note the main disconnected device is the AC Inlet. (ACT-71/ACT-72/ACT-74)
5. The antenna socket provides an 8V DC biased output. Therefore, shorting on the
antenna socket should be avoided. Temporary shorting on the antenna socket will not
affect system performance; however, continuous shorting on the antenna socket will
cause permanent system damage.
6. If extended reception distance is needed, installing a MIPRO directional antenna kit
(AT-90W) will increase the reception distance.
7. Proper antenna distribution is vital to achieving ideal performance from multiple
wireless systems operating in the same environment. To greatly reduce antenna
clutter in multi-system installations, a MIPRO AD-707/AD-707a UHF antenna divider
system is recommended. Each AD-707/AD-707a supports up to four UHF diversity
receivers to operate from a single pair of antennas. When combined with an AT-70A
omnidirectional extension antenna and an AT-70B antenna booster or an AT-90W
directional antenna, the AD-707/AD-707a antenna divider provides optimal signal
reception with minimal dropouts or interference.
8. Preset non-interfering channels within the same channel group are recommended to
ensure optimum performance from multiple wireless systems installed in the same
venue. Use of preset non-interfering channels from different channel groups
may cause interference, thus is not recommended.
GENERAL TIPS FOR IMPROVING SYSTEM PERFORMANCE