P
AGE
6
00331-0398 <90-00044>
2. Set the straps and switches
Set switches and straps for the 44020, 49018 (or 49028), 44443,
and 44023 modules. Refer to Figs. 3-7 and Table B.
T
ABLE
B - 00331 DTSS3ON N
ORMAL
S
WITCH
AND
S
TRAP
O
PTIONS
INSTALLATION
OPTION
BACKPLANE
E-Cont. (-01)
Called Party (-00)
Line T/R Normal
Line T/R Reversed
* Control
# Control
44020 MODULE
Input Impedance
Input Level 0 to -20dBm
Dial Tone Filter In
16-digit Dialing
* and # Aux. Input
* Non-latching
# Non-latching
49018 SUBASSEMBLY
External Reset
Number of Digits
One-Digit Codes
Two-Digit Codes
Three-Digit Codes
Circuit Code 1 (Off-Net)
First Digit
Second Digit
Third Digit
Circuit Code 2 (Forced
Disconnect)
First Digit
Second Digit
Third Digit
Busy/Reset
Normal # Control
Optional * Control
49028 SUBASSEMBLY
Reset
Self-reset in 3 seconds
External or decoded tone
resets
Number of Digits
Three-Digit Codes
Four-Digit Codes
Five-Digit Codes
POSITION
S1 UP
S1 DOWN
S2 NOR UP
S2 REV DOWN
S3 * DOWN
S3 # UP
BRDG
0
DTF IN
16 DGT
*1, *2, #1, #2
PLS
PLS
RESET OUT
DIGIT 1
DIGIT 2
DIGIT 3
S1
S2
S3
S4
S5
S6
# CLR, * SET
* CLR, # SET
X7 IN
X7 OUT
DIGIT X3
DIGIT X4
DIGIT X5
OPTION
49028 (CONTINUED)
Circuit 1 Code
Three-Digit Codes
Four-Digit Codes
Five-Digit Codes
Six-Digit Codes
Circuit 2 Code (3-Digit)
Busy/Reset (with tone)
Busy with *
Reset with #
Busy with #
Reset with *
Busy with A
Reset with C
44023 MODULE
Line RCV Level -16 to
-3dBm
Drop XMT Level -3 to
+7dBm
Manual Privacy
M Lead Dry Contact
E Lead
Control Interface
Loop Start
Ground Start
No Conference Delay
No Busy Control
44443 MODULE
Receive Attenuation (front
panel)
Transmit Attenuation (front
panel)
NBO
Impedance 600 Ohms
POSITION
S1 through S3
S1 through S4
S1 through S5
S1 through S6
S7 through S9
SET *
CLR #
SET #
CLR *
SET A
CLR C
RCV PAD OUT
XMT PAD OUT
PVT IN
M BATT OUT
M GND OUT
E CONT IN
LP CONT IN
GND ST OUT
LP CONT IN
GND ST IN
CONF OUT
B CONT OUT
8.5 dB
8.5 dB
S3-1 thru 6 open;
S3-8 closed
S1, S2 on 600
UPDATED
