Technical Manual

Technical Manual AM Systems
Introduction v4.4 Page 8 of 72
2.4 Restrictions and limitations
The following restrictions and limitations must be considered:
2.4.1 AM systems versus RF systems
It is not allowed to connect AM systems together with RF systems to the same Field Bus!
Pins 3 and 6 on BUS A and BUS B of the AM transceiver and receiver boards are not
interconnected. They are used for communication between the AM transceiver and the
AM receiver.
On RF systems, pins 3 and 6 are used for synchronization purposes between the RF
transmitter and the RF receiver, which is based on a completely different signal.
Connecting AM and RF systems to the same Field Bus will result in bad
performance and synchronization and must be avoided!
2.4.2 Model restrictions
The model restrictions are listed below:
Lights only
The lights only model does not contain any visitor counters, but does contain LED
indicators, which results in the following limitations:
x No visitor counting, doorbell or auto antenna arrangement
x No distinction between incoming and outgoing alarms
If all of the above mentioned features are required then the model with integrated visitor
counters must be used.
This manual covers the complete functionality of the NEXUS AM30. Keeping the above
mentioned model restrictions in mind, sections related to visitor counting and/or alarm
indication must be ignored when models without integrated visitor counters are used.
2.4.3 Software restrictions
The AM systems can be tuned with Cross Point’s Device Explorer software.
During first-time setup of Device Explorer you are required to specify your Cross Point
Cloud credentials in order to be able to use the Device Explorer software. If you do not
have an account yet then contact your company’s administrator or Cross Point to obtain
one.
2.4.4 Detection distances
The specified detection distances are maximum values. Dependent of environmental
noise, these maximum values might not be achieved and aisle widths need to be reduced
to obtain good system performance. See chapter 3 for more details on potential noise
sources and installation guidelines.