P
AGE
6
44443-1098 <90-00059>
APPLICATION INFORMATION
T
?
(P1)
17
16
7
8
15
14
13
3
4
5
9
10
11
12
6
RCV
{
{
XMT
TRUNK
"A" LEAD
"B" LEAD
PABX
LINE
INTERFACE
44023
XMT
RCV
HI Z OUT
+7
"M"
LEAD
"E" LEAD
dBm
-16
dBm
-BATT.
(-21 TO -56 VDC)
GND
J2
J1
2W/4W
TERM. SET
44443
R
1
2
(P1)
-4dBm
-6dBm
R
T
{
J4
RJ11
PHONEJACK
PABX
LINE
STATION
SELECTOR
49018
DTMF
DECODER
44020
*/#
& BUSY
TONE
GENERATOR
J3
TIP/RING
REVERSED
SWITCH
DROP
LINE
F
ig. 2 shows a 44443 Term Set as part of a 00331 DTSS3ON
Order Wire/PABX Interface. The 2-wire input of the Term
Set may be connected to:
♦
A PABX.
♦
An outside line.
♦
Any other 2-wire communication line.
Impedance matching selection is provided with the balancing
network to match either a 600 ohm or a 900 ohm 2-wire line.
F
IG
. 2 - 00331 DTSS3ON F
UNCTIONAL
B
LOCK
D
IAGRAM
