ES10/ES26
Page 15/104
Document status: released
Operating Manual
rev. 01, 03.11.08
3.3 Principle of Element Management
The interface configuration for Element Management or Network Management systems is shown
in the next two figures for the ES10XLa/ES26XLa with embedded NEC (network element
controller = SNMP Proxy Agent) and the ES10L/ESXLb.
Fig. 3.3.1: a) EMS / NMS Interface of ESxb
b) EMS / NMS Interface of ESxa
The ES10XLa/ES26XLa versions (ref. to Fig. 3.3.1 a) contain an embedded network element
controller (NEC) which works as a SNMP Proxy Agent. All equipment (EDFAs, optical switches,
receivers and power supplies) which are connected to the RS485 master interface and which
support the BKtel RS485 protocol are polled. The received data is then translated into SNMP and
HTTP and can be accessed via the Ethernet interface. The NEC is able to poll up to 48 devices
on the RS485 bus. On the optional I/O ports #1 … 5 warnings/alarms collected from all polled
devices can be accessed. The application software of the NEC can be updated easily in order to
support new devices. An overview of software releases is given in chapter 11. BKtel offers the
MIB-files for easy implementation of the SNMP interface into element/network management
systems (EMS/NMS) such as Cablewatch (BKtel), HP Open View or Rosa (SA former Barco
Networks).
The ES10L/XLb-versions (ref. to Fig. 3.3.1 b) does not contain an embedded NEC. The RS485
slave interface of the transmitter can be accessed directly, but should be connected to an
external NEC-E (e.g. BKtel’s Ethernet controller NEC-E in BK mechanics).
