DETAILED CASE AND MODULE DESCRIPTION
_________________________________________________________________________________________________________
8-42
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
8.5
LAN Communications
Each GCP5000 (GCE) may communicate with other Siemens equipment via LONTALK® LAN
(Echelon
®
) For further information, see Siemens’s Echelon Configuration Handbook, COM-00-
07-09.
8.5.1 ATCS Communication
The ATCS communication window displays a real-time view of in and out vital messages for
each vital serial communications link. Vital link sessions are shown on the face of the active
CPU III Module as follows:
•
LED #13 – Vital Link 1
•
LED #14 – Vital Link 2
•
LED #15 – Vital Link 3
•
LED #16 – Vital Link 4
CAUTION
BECAUSE THE ECHELON
®
INTERFACE IS NOT SURGE
PROTECTED, NETWORK CONNECTIONS MUST BE
RESTRICTED TO THE EQUIPMENT CONTAINED INSIDE A
SIGNAL CASE OR A BUNGALOW
NOTE
For additional information concerning the Echelon
LAN, refer to
Siemens Mobility, Inc. Echelon
Configuration Handbook, COM-00-07-
09. If further questions persist, contact Siemens Mobility, Inc. Technical
Support.
The Wayside Access Gateway is no longer required to communicate with
the GCP5000 (GCE). The communication functionality has been
incorporated into the GCP5000 (GCE) hardware and software.
Vital ATCS serial protocol data may be incorporated with the LONTALK
®
protocol to facilitate:
•
crossing control functions
•
remote prediction operations via Ethernet Spread Spectrum Radio (ESSR) with the
ESSR connected directly to the GCP5000 (GCE) case.
•
vital communications with other Siemens Mobility, Inc. vital controllers
The following rules apples when using the Echelon LAN:
•
Wire size is from #22 AWG to #16 AWG, stranded twisted pair.
•
Each connection (node) must be wired in a daisy-chained bus configuration, no
drops allowed (see Figure 8-15).
•
The maximum wiring length of LAN bus wiring is 425 ft. (129.5 m) within a signal
case or bungalow, but wiring should be kept as short as practical.