|PXML No. 23
APPROVAL No. NS/3841/23/E/601468 WAS NS/2334/23/L/601468
The SDX 180 comprises up to three SDX 60 device systems interconnected via a Central Control Unit (housed in an oblong metal cabinet) and fibre optic links, which increases the system size to 180 devices. Does not support digital links but has much enhanced SDX 40 software. This was the forerunner of the SDX 60.
See SDX 60 for further details.
SDX 180 Socket Wiring
Twisted pair cable must be used and telephone extension leads must not be used.
Card Handle Colours
Last revised: November 12, 2021