PHILIPS SOPHO S
PXML No. BABT/PXML/23 PBX. 0013/0023/0025/0037
The SOPHO S10, S15, S25, S35 family is a range of fully digital business communication telephone systems that were designed and manufactured first by Philips and then by Telecom Sciences (Tsc). Tsc were later bought by Mitel Telecom.
The systems utilise proprietary "S0" extension interfaces which provide full "2B+D" signalling. This enables the transmission of both speech and data using only the telephone system wiring. Standard system capacities (subject to variations) are given below:-
By using option cards the range can be extended to the following systems capacity:-
The terminal range consists of the following six terminals:-
The SOPHO SET D163 (Tsc IMAGE 100) includes four fixed function keys,
RECALL, TRANSMIT, HOLD AND PROGRAM. It is also equipped with a red message waiting
LED which flashes to alert the user when a message has been left at the terminal. An
integral loudspeaker enables the user to receive broadcast/paging messages from other
The SOPHO SET D263 (Tsc Image 200) has all the functions and
features available on the SOPHO SET 161, plus eight user programmable function keys (soft
keys) that allow users to customise their terminals to their specific needs. Each
soft key can hold two functions, giving the Business Plus Terminal sixteen additional
options - each programmable function key providing one "Primary" feature plus
one "Secondary" feature. Each function key has an integrated LED
(Light Emitting Diode) which provides visual indication of the status of a line, and
extension or a feature.
The Imagination Millennium 171 offers the features found on the D 163 plus
a loudspeaker key, a programmable feature key (F1), and a mute key. The Millennium
range of terminals were the most recently designed and manufactured and many users prefer
the robust and modern design.
The Imagination Millennium 271 offers the features found on the D 171 plus
fully hands-free speech, a large two line liquid crystal display (LCD), a volume
control, plus an extra programmable feature key. Like the D171, the set is
desk or wall mountable.
The Sopho Set D366 (Tsc Image 400). This set has all the features of the D-266 plus an LCD that is used by the installer and System Supervisor, in association with a further three keys below the LCD, to amend system settings and parameters.
48 Key DSS Module Same as above but with 48 programmable keys.
Music on hold (external) provides a five pin DIN socket for connection of an external music on hold device, such as a CD player or MP3 machine.
2-wire interface (AAO) Card. This card allows connection of two standard 2-wire devices such as a cordless telephone, fax machine, modem or answering machine.
6T Trunk Card allows connection of six exchange lines.
Tie Line Cards of various types are available such as E&M, DC5 and AC15.
Sopho S Socket Wiring
Many terminals sold with Sopho S
systems were fitted with plugs that look like standard BT plugs but the clips are
reversed. Sockets that use these plugs were supply by Philips. Termination points are
marked RX-, RX+, TX-, TX+. This corresponds to the MDF reference so you simply wire RX+ to
RX + etc.
New terminals are fitted with
standard RJ type plugs and can be fitted to ISDN sockets (terminated) or data sockets
(non-terminated). These should be wired to the MDF, Pin 3 to R+, Pin 6 to R-, Pin 4 to T+,
Pin 5 to T-.
When wiring co-located terminals
(terminated to non-terminated) they should be wired like for like. For example RX+ to RX+
or pin 6 to pin 6.
It is important to receive training before attempting to programme.
Last revised: January 28, 2023