44443-1098 <90-00059>
P
AGE
3
CIRCUIT DESCRIPTION
F
IG
. 1 - F
UNCTIONAL
S
CHEMATIC
, 44443-00/-01 F
OUR
-W
IRE
T
ERMINATION
S
ET
600
J1
55
51
5
49
25
29
7
17
13
42
5
4
3
2
1
IN
K1A NO
OUT
R6 49.9
K1B
R5 604 K1A NC
I.L.T.
E.S.
I.L.T.
BYPASS
OUT
K1
-
+
900
S2D
301
604
S3-8
S3-1
S3-2
S3-3
S3-1S3-4
S3-5
S3-6
T
GND
T
R
J2
4W RCV
5
4 3
1
2
4-WIRE RECEIVE
OUT 6
COM 1
IN 5
600
900
10
12
600
900
7
9
11
S1C
S1A
8
T1
900
600
S2C
1
6
2
3
4
5
600
900
19
27
T2
900
600
S2A
600
900
S2B
7
9
11
12
10
8
IN
6
OUT
5
4W XMT
COM 1
J3
2W IN
5
4 3
1
2
47
41
5
1
2
J4
2W MON
2-WIRE LINE
T
R
G LEAD
F LEAD
D LEAD
S1D
44443-01 OPTION
IDLE LINE TERMINATION/
ECHO SUPPRESSION
4-WIRE TRANSMIT
K1 RELAY CIRCUITRY
NBO CIRCUIT
15
ATTENUATOR
AB CAP OUT IN
ATTENUATOR
BAL NET
