04649-1098 <90-00194>
P
AGE
7
44202 M
ODEM
Refer to Tables D and E and Fig. 5 to set the switch and strap
options on the 44202 Modem.
T
ABLE
D - S
TRAP
O
PTIONS
, 44202
T
ABLE
E - S
WITCH
S
ETTINGS
, 44202
NOTE
: When RTS TEST switch is ON, RTS and DTR LEDs on front panel are ON.
SWITCH
2W/4W
RTS TEST
POSITION
4W
DOWN
DESCRIPTION
Selects 4-wire operation
Disables TEST functions.
SWITCH
DLB
ALB
POSITION
DOWN
DOWN
DESCRIPTION
Disables DLB functions.
Disables ALB functions.
SWITCH S5 (5-POSITION MINI DIP)
S5-1
DOWN
S5-2
UP
S5-3
DOWN
S5-4
DOWN
S5-5
DOWN
DESCRIPTION
Bell 202, Half Duplex (DOWN = rocker down on number side of
switch. UP = rocker up on number side of switch.
INSTALLATION
STRAP
TD422
RTS422
TD485
XMT
RCV
RCV GAIN
XMT GAIN
POSITION
O
O
O
n/a
n/a
LOW
LOW
DESCRIPTION
No termination at 422 Transmit Data input.
No termination at 422 Request To Send input.
No termination at 485 Transmit Data input.
Store in non-operative position.
Store in non-operative position.
Receive level gain to low.
Transmit level gain to low.
NOTE
: If a transmit level of -6 dBm cannot be reached, place the XMT GAIN
jumper to HIGH.