iCITE
®
DA-Data Aggregator
®
DA-400™
and
iCITE
®
Installation Manual
Eberle Design Inc.
Page
12
Disconnecting the SDLC prior to this step, may cause the intersection to go into a flash
condition. Most manufacturers sell additional SDLC cables for their respective cabinets.
NOTE: It is not recommended to place the DA-400™ into a serial connection between
the controller and the cabinet.
The information that is provided to the DA-400™ is “sniffed” from the standard SDLC
communications protocol, and will include the following:
From Monitor
•
Cabinet Status – Fault / No Fault
•
Fault Condition if in Fault
•
Channel color – Red, Yellow, Green, Walk, Walk Clearance
•
Cabinet Voltages – AC voltage and frequency / DC voltages
From Detectors
•
Detector Status – On/Off (cannot count multiple actuations on long loops)
•
Detector Fault Status (if communicated via SDLC)
3.7 CONNECTING THE DA-400™ TO ORACLE DETECTORS
This is an optional functionality of the DA-400™. The detectors to which the DA-400™ can
communicate are inductive loop detectors manufactured by EDI (Eberle Design Inc.) and
are called Oracle Detectors. There are two EDI model detectors to which the DA-400™ can
communicate. They are the EDI Oracle 2ECX and the EDI Oracle 4ECX detectors. Each of
these detectors has a 2.5 mm headphone type jack on the faceplate. These are the same
as are seen on the front of the DA-400™ just below and to the left of the GPS antenna
connector. They are labeled (
Aux 1 – Aux 8).
The Oracle detectors can be used if there is a need for more accurate and robust vehicle
presence or count detection. The information from the SDLC is sufficient for determining if
detection is working and if traffic is flowing and daily trending capabilities; however, the
SDLC bus does not provide highly accurate detection counts. If the Oracle inductive loop
detectors are properly installed, highly accurate detector counts can be provided from any
type of inductive loop installed, including long loops.
The Oracle detectors will communicate to the DA-400™ without any programming. If an
Oracle detector is plugged into the DA-400™ it will automatically begin logging data and
sending it to iCITE G2
®
as it collects the detector information.
Any other communicating detectors utilizing the RS-485 communications protocol can also
be monitored in addition to the EDI Oracle Detectors.
3.8 CONNECTING THE RELAY OUTPUT
The output relay is used to output the Programmed Sync Pulse. Consult your controller and
cabinet Manufacturer to determine proper configuration parameters to accept an externally
generated Sync Pulse Input for cabinet clock timing purposes.
NOTE: – The relay output is used for driving an external relay and should not be
used to directly power any external light sources. Doing so will damage the unit.
3.9 CONNECTING THE ETHERNET PORT
The Ethernet port can be configured or enabled for communications to a remote central
system via a WAN connection, or other traffic signal control devices inside the cabinet via a
LAN connection. The two (2) Ethernet ports can be configured to act as a pass-thru VPN
communications device enabling a remote central system to enable full system connectivity
to either a Controller or an On-Street Master.
