Section 365-262-205
7
S3
T&R
DROP
LINE
NORM
BUSY
BUSY
XMT
PRESCRIPTION GAIN
0 T0 32.5dB IN
0.1dB STEPS
J1-A
J1-B
XMT INPUT
RANGE
-22.5 TO
+10dBm
T 50
R 48
T1
T1&R1
J2-A
J2-B
RCV OUTPUT
RANGE
-22.5 TO
+10dBm
J3-A
J3-B
7
4
45
T1
R1
E
M
EB 9
MB 43
-48VS
-48VR
2 6
-48VS
REV
D1
S2
A
ZC
(NOTE 22)
NORM
Z3
S1-E
Z1
Z2
Y
(NOTE 20)
450 OHM
E
T2
1 2
8
(NOTE 14)
(NOTE 16)
XMT
FILTER
ENCODER
MLEAD
DETECTOR
FILTER
RCV
A
E
RELAY
S1-C
XDATA
C3
-48VS
RDATA
CGAI
CGAD
(NOTE 21)
MBI
P1
P2
P3
-48VS
XMT TLP
+5.2dBm
TANDEM
S1-B
NORM
DECODER
(NOTE 19)
M1
M2
M3
NORM
XMT
PRESCRIPTION GAIN
0 T0 32.5dB IN
0.1dB STEPS
RCV TLP
+5.2dBm
NORM
BUSY
DROP
LINE
E&M
DROP
LINE
BUSY
X
1.
PC board connector pin
2.
Primary transmission path
3.
Signal flow direction
4.
Front panel marking
5.
Open, closed screw option
6.
Factory-installed optional strap
Alternate position
7.
Receptacle-type optional strap
Alternate position
8.
9.
N.O., N.C. relay contact.
10.
All like-designated points are
connected
Ganged switches are indicated by dashed connection line or
alphabetically suffixed reference designations; numerical
suffix denotes discrete switch within a package.
XXXX
11.
PC mount test point
NOTES CONTINUED IN Table 2
NOTES:
XMT GAIN
-4.8DB
RCV GAIN
-27.7DB
(NOTE 25)
TP
Figure 7.
365268 4W E&M/PLR (Issue 6) Block Diagram
