05547-0798 <90-00047>
P
AGE
15
49920 I
NTERRUPT
-S
UPPLY
M
ODULE
To set the switches and straps:
1.
Verify that the switches and straps are set according to Fig. 13.
2.
Reinstall the module in the right slot of the bottom equipment
shelf.
F
IG
. 13 - 49920 S
WITCH
AND
S
TRAP
L
OCATIONS
S2
ON
OFF
OFF
TEST
ON
EXT
SPK
AUTO
S1
Access
S1
from
Front
INTERRUPT
STRAPS
NORM
REV
RING-BACK
TONE STRAPS
BUZZER
T
URN
-U
P
P
ROCEDURE
Check the tone levels of the external modem:
1.
Apply power to the order wire system.
2.
Push in the CHANNEL 1 and 2 buttons on the front of the 41096.
3.
Connect a 600-ohm dB meter (bridging) to the XMT MON jack on the
front panel of the 44022 Station Interface module.
4.
Turn on the carrier signal on the external modem.
5.
Adjust the transmit level on the modem until the dB meter reads
-13 dB.
6.
Turn off the carrier signal on the modem.
7.
Remove the dB meter.
8.
Release the CHANNEL 1 and 2 buttons on the front of the 41096.
9.
Set up the external modem to receive a signal of -26 dB.
10.
End of this section.
INSTALLATION