GSGC7 CONTROLLER FOR GSGC6
This unit has been specifically developed to control our GSGC6 ISDN 1U subrack.
It is constructed in a plastic case and contains an LCD display and a keypad, along with two LEDs and four other switches. Connection to the GSGC6 is made via a 9 pin D lead which is arranged as an RS232 port. Wiring to this connector is to IBM PC Standard. Power for the unit is provided from the GSGC6 via the same lead. A cable with 4 wires and an overall screen is preferred.Our aim has been to make this unit very simple and natural to operate. It connects to a single port of our GSGC6. If you have a GSGC6 with two codecs fitted it is best to use two GSGC7 controllers which can if necessary be located in different studios.
The 16 character by 2 line LCD display is used to prompt the user as well as to display the number called. It is also used to indicate the reason for the termination of a call.
Two LEDs are fitted to this controller. One illuminates when an ISDN line has been established and the other indicates when the codec in the GSGC6 has successfully locked. It is, of course necessary to have both LEDs on before the system is ready to use.

A sounder is built into this unit which can 'ring' when a call is incoming. This sounder can also be programmed to attract the operators attention when the GSGC6 receives a valid DTMF tone after a call has been established.
Up to 20 numbers can be held in non volatile store and you may notice that each numeric key can be used to generate letters in addition to numbers. This is only possible in the programming mode and can allow the user to relate any memorized numbers to specific names or locations.
GSGC14 CONTROLLER FOR GSGC6
GENERAL
Usually our hand held controllers type GSGC7 are used to operate our GSGC6 ISDN codec
units. The GSGC6 has two independent ports it is therefore necessary to use two GSGC7
controllers if both ports are in use. If you have an installation with two fully equipped
GSGC6 units a total of four GSGC7 units may well be required.
The GSGC14 unit was developed to simplify this situation. The GSGC14 is now available as
2U rack unit coded GSGC14-2U.
FACILITIES
The GSGC14 is designed to fit on top of a studio control desk. It contains four
independent positions, each one exclusive to one codec. Each position contains an
illuminated sixteen character by two line display. These displays provide exactly the same
information as the those in our GSGC7 units. This includes the dialled number information,
the calling number information and progress information about the call. Each position also
includes an ISDN line OK LED and a Codec OK LED. Total and
continuous information is therefore available about all calls.
A separate hand held dial unit codec GSGC15 is provided. This contains the standard twelve
dial buttons as well as a further four buttons, each with an LED. These four buttons
select which of the four codecs will be controlled.
REMOTE CONTROLLED OR WIRED
We have made two variations of this equipment. The original GSGC14 was designed to operate
with an infra red remote controlled GSGC15. Operating very like a domestic TV remote
control unit, it was only necessary to point the controller at the required display. This
unit arguably, has two minor problems in a busy studio. First it must be battery operated,
and although the battery life is about one year it is inevitable that it will one day go
flat. Secondly because it is not attached to anything it can easily be mislaid.
To overcome these two problems we designed an alternative set of equipment coded GSGC14A
and GSGC15A. In this equipment the GSGC15A is connected to the GSGC14A with a cable that
supplies power from the GSGC15A and data to the GSGC15A.
Both versions of this equipment will continue to be manufactured
EXPANSION
It is possible to have several GSGC15 controllers associated with a single GSGC14 units,
but only one may be used at a time. This is also true for the GSGC14A with the GSGC15A.
Internal DIP switches are provided in both the GSGC14 and 15 (also the 14A and 15A) to
provide sixteen different base addresses. It is therefore practical to use up to sixteen
GSGC14 units in a large system, when each GSGC15 will only operate its own GSGC14.

VIEW OF GSGC14A

VIEW OF GSGC14-2U
Links to Other ISDN Pages
GSGC5 GSGC6 GSGC8 GSGC9 GSGC17 GS3U-057 TX RESERVE