05774-0598 <90-00122>
P
AGE
9
F
IG
. 7 - S
TRAP
L
OCATIONS
, 44118 B
RIDGE
INSTALLATION
A
LIGNMENT
All straps and levels are factory-set. If necessary, refer to Fig. 8
and the section below to align the 44118 Bridge.
Equipment Required
♦
Signal Generator sending a 1kHz, 600 ohm signal at various
levels.
♦
600-ohm Level Meter (with and without 600-ohm termina-
tion).
1.
Verify that the straps are set per Table D. Remove power from the
shelf. Insert 44118 module into slot 3. Reapply power.
2.
Connect a 600-ohm terminated dB meter across the 600-ohm out-
put from the signal generator. Set the generator frequency to 1kHz.
Adjust generator level for a reading equal to system line receive
test tone level of +7dBm.
CONTINUED
. . .
HI LO
1R
HI LO
3R
HI LO
2X
+ +
+
+
+
+
HI LO
2R
LO HI
HI LO
4X
+
+
+
+
+
+
H1R
D1R
D3X
H3R
D3R
H2R
D2R
H4R
D4R
G3X
B3X
D3H
HI
LO
1X
+
+
+
+
+
+
+
B2X
D2H
D2X
G2X
G1X
B1X
D1H
D1X
D4X
D4H
B4X
G4X
HI
LO
4R
3X
