Private Branch Exchange (Pbx) Connection - ADEMCO Galaxy 16 Engineer's Manual

More than one item of series apparatus may be connected to the Galaxy 16 plus
TNV ports marked C and D. This is limited by summing the Series Equivalence
Number (SEN) shown on each item of series connected apparatus, ensuring
that the sum of the SENs is not more than one (1). The total series resistance,
including cabling, must not exceed 50 Ohms.
1. The SEN of the Galaxy 16 plus is 0.3.
2. Nominal series resistance is 90 milliohms.
3. Nominal insertion loss is 0.1 dB.
Note: Difficulties may be experienced when making calls from other apparatus
if the total SEN value approaches one or the total series resistance 50
If such difficulties are experienced, please consult the Galaxy 16 plus installer or
supplier, not BT.
It is recommended that the PSTN should have the following facilities:
1. Outgoing calls only (when used as dialler only).
2. Direct exchange.
3. Pulse or tone dialling.

Private Branch Exchange (PBX) Connection

The Galaxy 16 plus is only approved for use with BABT approved PBXs.
The correct operation of the Galaxy 16 plus can not be guaranteed under all
possible conditions of connection to compatible PBXs.
When connected to a PBX, the Galaxy 16 plus can be programmed to detect an
additional dial tone or to pause for two seconds between the dialling of the
digits. For details on programming see
OPTIONS; 2 Telephone Number 1
PBX Connection
Section 6: COMMUNICATIONS MENU
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