Specifications

ES10/ES26 Page 28/104
Document status: released Operating Manual rev. 01, 03.11.08
Notes:
• On pin 1, there is a 5.1 VDC (+/-5 %) supply voltage available for feeding an external
interface box, which e.g. could contain optocouplers or relays, external sensors etc.; the
current sinked from this port should not exceed 80 mA.
• I/O #0 is directly related to the transmitter. If the port is used as an output, alarms related
to the transmitter can be accessed on this output. If the port is used as an input it enables
easy redundancy switching between two redundant ES10XLa. For details please refer to
7.15.
• I/O #1 to 5 are directly related to the NEC. The output port I/O No. 1, can therefore be
used to display a warning or an alarm, if
1. one of the (up to 50) RS485-polled devices or
2. the ES10/ES26 or
3. at least one of the input ports (I/O #2..5), which has been set to indicate a warning
or an alarm,
exhibits a warning or an alarm. For details please refer to 6.7.
• All I/O ports can be addressed and configured via the Ethernet Webserver (HTML)
interface or via SNMP.
• In order to not degrade the EMI performance of the ES10XLa/ES26XLa, a shielded cable
with the shield connected to pin 2 (GND) of the mini-DIN–connector has to be used.
4.3 I/O Port of ES10/ES26 (Option for b-versions)
The ESxb is equipped with one I/O port. The schematics is given in Fig. 4.2.2.
The ES10L/XLb uses an 8 pin Mini-DIN connector for external Input/Output handling. The
connector is located on the backside of the device near to the NMS RS485 Master connector.
Fig. 4.3.1: ES10L/XLb rear side connectors