No. BABT/PXML/3/PBX. 0020
APPROVAL No. S/2334/3/G/500407
The MX5 was made by STC and is also known under other names (LYNX MX5 and VISION 1000).
It has a maximum configuration of 1+5 and the line on earlier models was hardwired into a master LJU (this required a PCI from the Network provider).
The later versions came with complete with a line cord with a Plug No. 631 on the end.
The case is secured by two push-in clips on the bottom edge of the cover.
Maximum cabling length is 200 metres.
Extension 1 cannot be set to Do Not Disturb or Call Barred.
Extensions use 2 wires and are connected to the TSB terminal block.
The extension ports are all LD working and should be terminated on master sockets with locking bars.
Extension REN = 2.
Call barring is set up by the appropriate setting of switch S214 which is located near the lower edge of the unit adjacent to the terminal block.
Last revised: February 26, 2021