Legacy Equipment

Whilst this equipment is no longer part of our primary catalogue it is still supported wherever components are available.


The SP-25 RTU supports dial in communications and has been superceded by the SP-35 RTU-E for dial in functionality.


Previous generation RTU.

ST-52 / Outstations

Previous generation outstation.


The E1 Drop-Insert Multiplexer provides a range of digital data and audio services that can be managed locally (via LCT) or remotely by D&ITs PC-G8 NMS or a 3rd Party SNMP Manager. This can be utilised to complete loop polling for branch lines etc.

E1 Drop & Insert Multiplexer data sheet