44118-0798 <90-00003>
P
AGE
11
STEP
6
7
8
9
10
11
12
13
14
ACTION
Move signal generator to the LINE RCV
PORT 3 jack (J5). Reset for port 3
receive level, if necessary.
Move signal generator to the LINE RCV
PORT 4 jack (J7). Reset for port 4
receive level, if necessary.
Leave the signal generator connected to
J7 for steps 9 through 11. Do not change
generator level. Do not readjust any
receive level controls.
Move the 600 ohm terminated dB meter
to the LINE XMT PORT 1 jack (J2).
Move the 600 ohm terminated dB meter
to the LINE XMT PORT 2 jack (J4).
Move the 600 ohm terminated dB meter
to the LINE XMT PORT 3 jack (J6).
Move signal generator to the LINE RCV
PORT 1 jack (J1). Reset for port 1 receive
level, if necessary. Do not readjust any
receive level controls. Move the 600 ohm
terminated dB meter to the COMBINED
DISTRIBUTION OUTPUT jack (J9).
Move the 600 ohm terminated dB meter
to the LINE XMT PORT 4 jack (J8).
Calibration is complete. Remove the
signal generator and dB meter.
RESULTS
Read distribution level on meter. Adjust the LINE
RCV PORT 3 level control (R38) for reading of
-10 dBm, or appropriate distribution level for the
system, if different. If desired level cannot be
reached, move the 3R gain strap to the HI or LO
position, as required.
Read distribution level on meter. Adjust the LINE
RCV PORT 4 level control (R54) for reading of
-10 dBm, or appropriate distribution level for the
system, if different. If desired level cannot be
reached, move the 4R gain strap to the HI or LO
position, as required.
Read system line transmit test tone level (0 dBmO)
for port 1. Adjust the LINE XMT PORT 1 level
control (R16) for proper reading. If the desired
reading cannot be reached, move the 1X gain strap
to the HI or LO position as required.
Read system line transmit test tone level (0 dBmO)
for port 2. Adjust the LINE XMT PORT 2 level
control (R31) for proper reading. If the desired
reading cannot be reached, move the 2X gain strap
to the HI or LO position as required.
Read system line transmit test tone level (0 dBmO)
for port 3. Adjust the LINE XMT PORT 3 level
control (R46) for proper reading. If the desired
reading cannot be reached, move the 3X gain strap
to the HI or LO position as required.
Read -10 dBm, or the appropriate system level
distribution level, if different. This is the same level
as obtained in step 4.
Read system line transmit test tone level (0 dBmO)
for port 4. Adjust the LINE XMT PORT 4 level
control (R62) for proper reading. If the desired
reading cannot be reached, move the 4X gain strap
to the HI or LO position as required.
INSTALLATION
T
ABLE
B (
CONTINUED
) - F
OUR
-W
AY
/F
OUR
-W
IRE
B
RIDGE
A
PPLICATION
C
ALIBRATION
P
ROCEDURE