SR Installation Manual EN
ERECA SAS 75 rue d'Orgemont, 95210 SAINT GRATIEN France Tel +33 1 39 89 76 23 www.ereca.fr
1.2.5 Serial ports
Two multiprotocol RS232/422/485 serial signals are transmitted in standard by the equipment.
The supported datarate of each signal is about 250Kbds.
The setting of the serial protocol is done within the web server of the STAGE RACER.
1.2.5.1 RS422/485
The RJ 45 connector provide 1 differential pair for RS422 transmit and 1 differential pair for RS422 receive.
To build half duplex RS485 transmission just bridge pins 3 with pin 4 and pin 5 with pin 6.
For RS485 also setup the corresponding Baud rate within the web server to enable the stage racer to
manage output impedance at the right serial byte duration.
Refer the Shield to pin 1.
1: GND (Shield)
2: GP IN
3: RX RS 422 – (Stage racer electrical OUTPUT)
4: TX RS 422 – (Stage racer electrical INPUT)
5: TX RS 422 + (Stage racer electrical INPUT)
6: RX RS 422 + (Stage racer electrical OUTPUT)
7: GP OUT
8: GP OUT
Note: For RS 485 Telex/RTS talkback panels please ask ERECA for wiring tip.
1.2.5.2 RS232
Refer The RS 232 signal ground to pin 1. Leave pins 5 and 6 unconnected.
1: GND (Ground ref/Shield)
2: GP IN
3: RX RS 232 – (Stage racer electrical OUTPUT)
4: TX RS 232 – (Stage racer electrical INPUT)
5: Do not connect
6: Do not connect
7: GP OUT
8: GP OUT
1.2.6 Ethernet ports
The stage racer offers 2 Gigabit ethernet ports separated by internal VLANs, the 2 ports are transmitted
simultaneously on a single 1Gbs trunk.
The 2 ports are separated with 802.3AD VLANs. This VLAN setup takes care of your customer VLANS by
adding a service tag on input frames and removing this service tag on transmitted (output) frames. Basically,
the traffic held by the stage racer is considered 100% as payload so all your network setup won’t be
affected.
Networked audio (Ethersound / Dante / Ravenna) are correctly transmitted by the stage racer.
Note: The stage racer admin web server is accessible on PORT 1.
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