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Installation Guide
PBX Interface T942PX
T942PX is an interface unit between the teleCOURIER 900 paging system and a telephone exchange,
PBX (Private Branch Exchange). In some cases the T942PX is used to connect a telephone as control
instrument. The PX unit may be connected to an extension or to a trunk line. When connected to a
trunk line it detects and generates both dial pulses and DTMF tone signals. When connected to an
extension it detects and generates DTMF tone signals and generates dial pulses.
E & M signaling according to "ESPA standard interface recommendation 4.4.3" is also possible. If
speech is used in the system, speech module T941SM is included.
A FLASH PROM in T942PX enables remote programming of the program and parameters.
Note: T942PX is not intended for connection to public telephone networks.
Note:
To facilitate service after the unit is installed,
we recommend a free space of about 50 mm
above and 150 mm below the unit.
1996 11 06
PBX Interface T942PX - Installation Guide
Dimensions (H x W x D)
275 x 130 x 60 mm
56,5
112
9 9
275
188,5
65
130
2
1
1
1. General
Supply voltage:
Current consumption:
Delivery includes:
• T942PX
• Modular bus cabling
• If the T942PX is to be used in a speech installa-
tion, speech module T941SM is mounted on the
T942PX PC board and installation guide
TD 90648GB is included in the delivery.
It is possible to order from your dealer package
T942PX-2 art. no 541175. In addition to the above
the delivery includes the following items:
• Power supply Mascot 8311, 42 Vac
• Telephone wall socket
• Telephone (Respons)
Tools etc. required:
• 2 mm drill
• Screwdriver
• Cutting pliers
• Screws for installation
• Multimeter
• (Oscilloscope)
2. Installation
T942PX should be placed in a dry environment with
a temperature of 0 to +40ºC. The unit can be
connected together with other units in the
teleCOURIER 900 system, either via modular bus
cabling or via twisted-pairs (see points 8, 9, and 10).
To replace the PC board, see point 18.
The second drawing at left shows dimensions for
installing the T942PX.
Use a screwdriver or similar to release the cover by
applying a light pressure to the two snap-catches (1)
and remove the cover (2).
TD 91012GB
12,5 Vdc ± 10%
Max 0,5 A
1