BT OCTARA 32 and 32X
|PXML No. BABT/PXML/3 SCR.0006
APPROVAL No. NS/1209/3/F/600049
Time and Date change
The Merlin Phone System is a stored program control (SPC) key telephone system utilising micro-processing control techniques with time division multiplex (TDM) switching and digital (A-law PCM) speech transmission between the Key Service Unit and the Keystations.
The Octara 32 has a maximum configuration of 10 public exchange lines and 32 extensions, and a minimum configuration of 2 public exchange lines and 6 extensions. The system has dedicated keystations which have up to 20 feature keys supported by LED indications in order to present the system feature capability to the user. A less sophisticated key station is also available, and this provides similar access to the Keysystem features via a 12 key standard push-button telephone key-pad.
The Octara 32X can also provide up to 8 private circuits, with a corresponding reduction in public exchange line capacity.
This system is also approved for use in the Simple Call Routing Mode (SCRM).
The Key Service Unit (KSU) is a self-contained wall-mounted equipment with a mains derived power supply unit, a main distribution frame (MDF) and all switching and control elements.
Power-fail fall-back facilities are provided by suitable approved telephones to allow direct connection to the PSTN.
The apparatus must be connected to the PSTN, host CRA and analogue private circuits by the connection of incoming PTO cables to the Test Jack Frame.
NOTE: The Base card has both exchange line circuits provided with power-fail capability.
Each Extension card has one exchange line circuit provided with power-fail capability.
Call Routing Mode
Taken from the PXML
Octara 32/32X (was also known as S2031) is a key telephone system with a maximum capacity of 10 Exchange lines and 32 telephone terminals. Octara 32X has replaced Octara 32 for new installation work. It has a wall mounted central control unit with an integral box connection. There are three types of telephone terminals, a basic terminal (TX21), a Featurephone (TX23) and a Featurephone with full handsfree facilities (TX25).
Octara 32X can provide up to 8 private circuits with a corresponding reduction in exchange line capacity.
Note: If a private circuit is fitted in position 5 there will also be a reduction of 2 extensions.
Made by GEC Plessey Telecommunications Ltd
Approved for direct connection to the PSTN loop disconnect or MF signalling or by working as a (List A) subsidiary system (loop disconnect or MF signalling) connected to a (List C) PBX. The system will support either Earth or Time Break Recall.
SOFTWARE OCTARA 32
IC10 IC11 DKS L1 IG10 DKS L2 ICll 1/16399/7171 1/16399/l72 Release 1.7
VER 1.7 VER 1.7 Release 1.8 VER 1.8 VER 1.8 Release 1.9 VER 1.9 VER 1.9
SOFTWARE OCTARA 32X
IC10 IC11 IC13 BT OCTARA 32XL BT OCTARA 32XL BT OCTARA 32XL BG515 PT1 IC10
BG515 PT2 IC11 BG515 PT3 IC13Release 2.5 DKS 6/3/87 V2.5 DKS 6/3/87 V2.5
DKS 6/3/87 V2.5ReIease 2.6 DKS 27/11/87 V2.6 DKS 27/11/87 V2.6
DKS 27/11/87 V2.6Release 2.7 DKS 27/10/88 V2.7 DKS 27/10/88 V2.7
DKS 27/10/88 V2.7Release 2.8 DKS 8/5/89 V2.8 DKS 8/5/89 V2.8 DKS 8/5/89 V2.8
SOFTWARE OCTARA 32X PRIVATE CIRCUIT BOARD
PC Firmware BG516 IC16 DKS 6/3/87 V1.
The PXML specifically prohibited PSTN traffic over IPBX circuits or external extensions on Octara, but Oftel issued a Variation Order NS/V/123/100010 that allowed such use.
Last revised: September 25, 2021