P
AGE
18
44210/49210-0798 <90-00025>
T
ABLE
B
CONTINUED
- H
AYES
-C
OMPATIBLE
C
OMMAND
S
ET
, R
ESPONSE
C
ODES
,
AND
R
EGISTERS
U
SED
REGISTER
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
RANGE/UNITS
0-255 Rings
0-255 Rings
0-127 ASCII
0-127 ASCII
0-127 ASCII
0-32, 127 ASCII
2-255 Sec.
1-255 Sec.
0-255 Sec.
1-255 1/10 Sec.
1-255 1/10 Sec.
50-255 m.s.
2-250 1/50 Sec.
Bit Mapped
Bit Mapped
Bit Mapped
0, 1, 2, 4
SOFTWARE REGISTERS USED BY THE COMMAND SET
DESCRIPTION
Ring to answer telephone on.
Number of rings.
Escape code character.
Character recognized as carriage return.
Character recognized as linefeed.
Character recognized as backspace.
Wait time for dial tone.
Wait time for carrier.
Pause time caused by comma.
Carrier detect response time.
Delay between loss of carrier and hang up.
Duration and spacing of touch tones.
Escape code guard time.
UART status register.
Option register.
Flag register.
Test modes.
DEFAULT
0
0
43(+)
13(CR)
10(LF)
8(BS)
2
30
2
6
7
70
50
none
none
none
0
The 44210 has front panel LEDs that indicate TD (Transmit
Data), DTR (Data Terminal Ready), RD (Receive Data), CD
(Carrier Detect), OFF HOOK, and RING. These LEDs will
illuminate when that function becomes active. The unit also has
front panel phone jacks, a reset button, and a subassembly
cutout window to view the front panel of an optional 49210 Two-
Line Interface Subassembly. When no subassembly is mounted
on the 44210, a bypass card is mounted in place of the subas-
sembly and a plastic insert fills the cutout opening. Refer to
Fig. 10 and Table C.
The 49210 has front panel LEDs that indicate activity for each of
the two lines. The LEDs are designated LINE 1 and LINE 2 and
are visible through a cutout on the front panel of the 44210
module. Refer to Fig. 10 and Table C.
OPERATION
F
IG
. 10 - F
RONT
P
ANEL
V
IEWS
44210-00
460 Modem
RESET
ESD
TD
DTR
RD
CD
OFF
HOOK
RING
L
I
N
E
M
O
N
49210-00
LINE
1
LINE
2
TWO LINE
INTERFACE
44210-00 REV__
