The software / hardware described in this book / file is furnished under a license agreement and may be used only in accordance with the
terms of the agreement.
Documentation version 1.0
Copyright Notice
All Rights Reserved.
Any technical documentation that is made available by Nedap Retail Support is the
copyrighted work of Nedap Retail Support and is owned by Nedap Retail Support.
NO WARRANTY. The technical documentation is being delivered to you AS-IS and
Nedap Retail Support makes no warranty as to its accuracy or use. Any use of the
technical documentation or the information contained therein is at the risk of the user.
Documentation may include technical or other inaccuracies or typographical errors.
Nedap Retail Support the right to make changes without prior notice.
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Nedap Retail Support, Parallelweg 2d, 7141 DC Groenlo, Netherlands
Trademarks
Nedap, the Nedap logo, Nedap EASi/Net and the Nedap EASi/Net are registered trademarks of Nedap N.V. Groenlo.
Other product names mentioned in this manual may be trademarks or registered
trademarks of their respective companies and are hereby acknowledged.
The following points can be used:
K3 Oscilloscope Tx K23 IO Connector
K4 Output Tx (connector 4) K24 IO Connector
K5 Output Tx (connector 3) K201 Handheld terminal RxTx
K6 Synchronization In K202 Oscilloscope Rx
K7 Synchronization In K203 Jumper
K9 Jumper Attenuation K204 Jumper
K10 Master connector K205 Handheld terminal NCC
K11 Power Input K300 Output Rx (connector 1)
K12 Jumper Attenuation K301 Output Rx (connector 2)
K13 Jumper Attenuation P1 PA Drive Adjustment
K15 Jumper Attenuation P2 Phase Adjustment Tx
K16 RS232 Interface Connector P3 Mixer Bias Adjustment
K19 Jumper P4 Slave Data communication Rx
K21 Connector FCI P5 Master Data communication Rx
Indicator leds:
D11 Mux Connector 1 TX D51 Customer Counting: Led on = active
D12 Mux Connector 2 TX D52 Customer Counting: Led on = active
D16 Lamp On Connector 3 D53 Customer Counting: Led on = active
D17 Lamp On Connector 4 D201 Label Alarm RxTx
D18 Lamp Overload Connector 4 D202 Communication Error RxTx
D19 Lamp Overload Connector 3 D220 Label Detection Alarm NCC on = detection
D25 Sweep Lock D221 Communication Error NCC
D26 Center Lock D300 Lamp Overload Connector 1
D30 Customer Counting: Led on = active D301 Lamp On Connector 1
D45 Customer Counting: Led on = active D302 Lamp Overload Connector 2
D47 Customer Counting: Led on = active D303 Lamp On Connector 2
D48 Customer Counting: Led on = active D311 Mux Connector 1 RX
D50 Customer Counting: Led on = active D312 Mux Connector 2 RX
Indicator leds:
D11 Mux Connector 1 TX D51 Customer Counting: Led on = active
D12 Mux Connector 2 TX D52 Customer Counting: Led on = active
D16 Lamp On Connector 3 D53 Customer Counting: Led on = active
D17 Lamp On Connector 4 D201 Label Alarm RxTx
D18 Lamp Overload Connector 4 D202 Communication Error RxTx
D19 Lamp Overload Connector 3 D300 Lamp Overload Connector 1
D30 Customer Counting: Led on = active D301 Lamp On Connector 1
D45 Customer Counting: Led on = active D302 Lamp Overload Connector 2
D47 Customer Counting: Led on = active D303 Lamp On Connector 2
D48 Customer Counting: Led on = active D311 Mux Connector 1 RX
D50 Customer Counting: Led on = active D312 Mux Connector 2 RX
It is possible to attenuate the
receiver input sensitivity with 6, 12
or 18dB. In this way the receiver is
capable of accepting the high level
of the coupled transmitter signal
when the panels are too close to
eachother. When the distance
between the antenna’s is below 1.5
metre the attenuator should be
used to avoid overloading of the
receiving input.
-1 = No modem - Wrong cable / modem
switched off / wrong modem
0 = Modem found - default value
1 = Modem connected - someone is
connecting to the NCC
2 = Modem is trying to connect
3 = Connection present- NCC is connected
to the other side
Ppp = Point to Point Protocol
(when modem status is 3)
00 = No PPP - No modem connection / provider
does not understand the options
01 = LCP ISP is ready - NCC can not handle
the provider options
03 = LCP NCC is ready- Wrong name or Password
07 = PAP NCC is ready- Provider does not
understand IPCP options
0F = IPCP ISP is ready- NCC does not understand
IPCP options
1F = IPCP NCC is ready- TOP-server can not be
found / wrong IP-number and/or provider
does not support protocol
3F = TOP started- Default value
7F = TOP execute- Default value (very rare)
FF = Hangup- Default value (very rare)
Connecting to an ISDN line using the DeTeWe TA33
terminal adapter
At the moment this manual is written, connecting a ISDN modem to a XQ or an EQ/IQ Unit is NOT supported. The
connection shown below can be used in case of an ISDN telephone line.
Modification of the OS/T Metal Detection
operating frequency from 66 kHz to 62.75 kHz.
In DSP3 systems the Metal Detection (MD) had an operating frequency of 48 kHz, independent of the
8.2 MHz sweep generation system. It could run as a stand-alone system.
In the OS/T system, it is possible to set up a system including MD with internal electronics in the panels
and a single coax connection between the panels.
To realize that, the operating frequency of the OS/T MD had to be derived from the OS/T sweep
frequency. The required modification also gave the opportunity to choose a higher operating frequency.
That was desired because of an enhanced detectability of metal-lined bags with a very thin aluminum
layer, like used in certain types of “Cool Bags”.
The new operating frequency was chosen at 66 kHz, 8 kHz above the Acousto-Magnetic (AM)
operating frequency of Sensormatic, in stead of 10 kHz below it, but still within a frequency band where
the same level of fieldstrength (72 dBµA/m) is allowed, and not on the frequency’s of several
positioning systems, time standards and submarine communications.
Unfortunately this carefully chosen frequency appeared to be exactly the listen frequency of Security
Tag or Xpondr frequency divider EAS systems. The transmitter frequency of Xpondr is 132 kHz, so the
Nedap MD does not suffer from any interference of a Xpondr system.
When installed in neighbor shops, an Xpondr system appeared to be completely deaf.
Therefore we had to modify the operating frequency to a nominal 62.75 kHz in stead of 66 kHz.
This small frequency shift has the least impact in the modification of several filter components.
With the sweep-extend of the OS/T system on position 3, this frequency shifts down to 60.57 kHz.
This range is sufficiently below 66 kHz to prevent interference problems with both digital and older
analog Xpondr systems.
The drawback unfortunately is that 62.75 kHz is closer to the AM frequency. A Nedap MD system can
function on a distance of about 20 m away from an AM system. This minimum distance now should be
at least 25 m.
The OST combination NCC4 and external RX4/TX4 can be fitted with up to 8 antenna’s making it
possible to guard up to 4 entrance separately.
This MD4 pcb also makes it possible for the Metal Detection to connect and process up to 4 different
entrances separately.
Like the FCI (Flat Cable Interface) pcb this MD4 pcb is also connected to the feature connector on the
OST RX4 or TX4. The MD4 pcb does not need tuning and holds no jumpers.
In addition to the 4 Metal Detection in/outputs the pcb is fitted with 4 extra inputs. Floating contacts can
be connected to these inputs, for instance to count tag decouplings or shop open/closed.
On the OST feature connector a 600Hz repeated signal is available from which the flat cable
interface produces the 66 kHz which is used on the metal detection PCB’s.
The /start pulse from the feature connector are infect two very narrow pulses about120uSec
apart and repeated in a more or less 600 Hz rhythm.
On every first pulse a 1 shot 74HC123) is triggered to produce a more or less 600 Hz block
signal used a reference signal for a PLL (74HC4046). The VCO of the PLL block oscillates on
132 kHz which by means of a programmable divider divides this signal to around 600 Hz.
This signal is then used on the Comp In. of the PLL and the 132 kHz is locked. Another 1 shot
triggers a divider by 2 circuit to output the 66 kHz signal which is available on the 4 data cable
outputs.
An alarm from the MD RX is shaped and buffered (74hc573) and presented on one of the
inputs of a 2 x 4mux (74hc4052). Dependent on the mute_3 signal, ext_clk and ext_i/o are
used to address the latch (74hc573) or read the output of the mux.
The MD4 PCB will be mounted on the metal plate on top of the IQ unit.
It will be connected with a flat-cable to connector K21 (FCI) of the IQ PCB.
See the drawing for the right polarity.
6 Handheld terminal settings
For the handheld-terminal settings see the manual of the handheld-terminal (version 1.300 or higher).
The MD4 is designed to be used in combination with the OST external TX unit.
Metal detection now can be used in the same entrance configuration as you connect your OST external
RX/TX. As on the OST unit, 4 independent Metal Detection connectors are available with independent
alarming. (alarming is per entrance not per aisle).
As you see there is no change in how to loop the Metal Detection pcb’s together.
Only be sure to connect only one entrance per connector on the MD4 pcb.
This MD4 is also fitted with 4 additional “alarm-inputs” which can be used for a variety of options. Only
a floating contact is needed. One can use the contacts for instance as detection “shop open/closed” –
guard on watch – alarm cause – etc etc.