Tait T850 II Series User Manual

G4.2 Line Controlled Base Without Talk Through M850-00
31/09/98 Copyright TEL
Figure 4.3 4-Wire to 2-Wire Converter
4.2 Transmitter Tail Timer
If the transmitter has the tail timer enabled:
• the receiver disable timer must be set so that
t
Rx/Dis >
t
Tx/Tail;
Figure 4.4 Receiver Disable Time vs Tail Time
• if the system configuration also uses an aerial changeover relay as well as the tail
timer, the changeover relay must be driven from the relay driver (Q250) in the
audio processor, rather than by Tx-Key or Tx-Enable; this output is available on
pin 9 of the T800-03-000 auxiliary D-range (D-range 2);
• depending on tail time requirements, it is possible for the transmitter tail time to
exceed the receiver disable time capability; in this situation the receiver disable
line should also be driven from relay driver Q250 (D-range 2 pin 9).
2-Wire Line
C1
C2
TransmitterReceiver
RV1
approx. 2µ
Hybrid Balance
1k
Rx Disable Time
No Tx or Rx
Tail Time
On
Tx Reg.
Rx Off
Tx Enable
& Rx Disable

Tait T850 II Series Specifications

General

Brand	Tait
Model	T850 II Series
Category	Accessories
Language	English