Bogen TAMB2 - Manual (Page 4)

Connections to Paging Amplifier Input
Connections to Telephone Equipment
STATION/
TRUNK
PAGE
OUT
PT PR G/S T R
600-ohm Balanced Input
STATION/
TRUNK
PAGE
OUT
PT PR G/S T R
Hi-Z Unbalanced Input
Impedance-Matching Transformer
WMT1A
Balanced Input Wiring:
The TAMB2 was designed to connect to a 600-ohm bal-
anced TEL input. The amplifierʼs input sensitivity should
be high enough that with 200mV input signal, the amp
will be able to produce its full rated output power. If input
sensitivity is not high enough, try using an unbalanced
input with a WMT1A transformer (as shown below).
Unbalanced, Hi-Z Input Wiring:
Wiring to an unbalanced Hi-Z or AUX input normally requires the use of a WMT1A trans-
former. The output levels of the TAMB2 generally cannot drive this type of input to full rated
power since the AUX input is less sensitive than the specialized TEL inputs. The WMT1A
provides about a 5X voltage increase in the ampʼs input.
Wiring to the ground start trunk port requires a connection
between the TAMB2ʼs G/S terminal and the ground of the
PBX. The AC chassis ground for the PBX can typically be
used for this connection.
IMPORTANT
Keep Amp turned off until all
wiring to the TAMB2 is complete
PBX
STATION/
TRUNK
PAGE
OUT
PT PR G/S T R
Tip
Ring
PBX Ground Start Trunk
Port Connections
(Ground Start Port)
PBX or CO
STATION/
TRUNK
PAGE
OUT
PT PR G/S T R
Tip
Ring
PBX Loop Start Trunk Port
CO/PBX Station Port Connections
(Loop Start
or Station Port)