Contents
C
HAPTER
1
I
NTRODUCTION
............................................................................................................................3
S
UMMARY OF
K
EY
F
EATURES
..........................................................................................................................3
M
ODELS
...........................................................................................................................................................3
U
SING
T
HIS
M
ANUAL
.......................................................................................................................................3
C
HAPTER
2
I
NSTALLING THE
M
ODEM
...........................................................................................................4
S
ITE
P
REPARATION
...........................................................................................................................................4
U
NPACKING
Y
OUR
H
ARDWARE
........................................................................................................................4
A
DDITIONAL
I
TEMS
Y
OU
N
EED
........................................................................................................................4
H
ARDWARE
O
VERVIEW
....................................................................................................................................4
C
ONFIGURING THE
M
ODEM
..............................................................................................................................6
Jumper S1
−
Carrier Detect Control...........................................................................................................9
Jumper S2
−
Transmit Level........................................................................................................................9
Jumper S3
−
2-wire/4-wire Mode................................................................................................................9
Jumper S4
−
Call Turnaround Squelch .......................................................................................................9
Jumper S5
−
Transmit Carrier ..................................................................................................................10
Jumper S6
−
Local Copy ...........................................................................................................................10
Jumper S8
−
Signal and Earth Ground .....................................................................................................10
Jumper S9
−
RTS-CTS Delay ....................................................................................................................10
Jumper S10
−
Carrier Detect Delay..........................................................................................................11
Jumper S11
−
Turnaround Squelch Time..................................................................................................11
Jumper S12
−
Soft Carrier Turn Off..........................................................................................................11
Jumper S13
−
Anti-Streaming ...................................................................................................................11
Jumpers S14 and S15
−
Self Test or Test Pattern......................................................................................12
C
ONNECTING A
DTE ......................................................................................................................................12
C
ONNECTING TO A
P
RIVATE
L
INE
C
OMMUNICATION
C
IRCUIT
........................................................................12
Connecting to a DC Power Source (MD1970A-DC)
................................................................................12
Connecting to an AC Power Source (MD1970C)
.....................................................................................13
C
HAPTER
3
LED
S AND
C
ONTROLS
...............................................................................................................14
F
RONT
P
ANEL
LED
S
......................................................................................................................................14
F
RONT
P
ANEL
T
EST
S
WITCH
..........................................................................................................................14
C
HAPTER
4
T
ROUBLESHOOTING
..................................................................................................................17
L
OCAL
M
ODEM
T
EST
.....................................................................................................................................17
L
INE AND
M
ODEM
T
EST
.................................................................................................................................17
C
HAPTER
5
S
PECIFICATIONS
........................................................................................................................18
G
ENERAL
........................................................................................................................................................18
D
IMENSIONS AND
W
EIGHT
.............................................................................................................................18
T
EMPERATURE
R
ANGE
...................................................................................................................................18
P
OWER
R
EQUIREMENTS
..................................................................................................................................19
DC
P
OWER
R
EQUIREMENTS
(MD1970A-DC)................................................................................................19
I
NTERFACE
P
IN
A
SSIGNMENTS
.......................................................................................................................19
A
PPENDIX
A
C
OMPLIANCES
.........................................................................................................................20
FCC
R
EQUIREMENTS
F
OR
T
ELEPHONE
-L
INE
E
QUIPMENT
..............................................................................20
C
ERTIFICATION
N
OTICE
F
OR
E
QUIPMENT
U
SED
I
N
C
ANADA
..........................................................................20
F
EDERAL
C
OMMUNICATIONS
C
OMMISSION
A
ND
C
ANADIAN
D
EPARTMENT
O
F
C
OMMUNICATIONS
R
ADIO
F
REQUENCY
I
NTERFERENCE
S
TATEMENTS
...........................................................21
N
ORMAS
O
FICIALES
M
EXICANAS
(N
OM
)
E
LECTRICAL
S
AFETY
S
TATEMENT
.................................................21
I
NSTRUCCIONES
D
E
S
EGURIDAD
.....................................................................................................................21
Page ii
Содержание MD1970A
Страница 1: ...February 2004 0049 0119 500 MD1970A MD1970A DC MD1970C Modem...
Страница 7: ...Installing the Modem Figure 2 5 Modem Jumper Locations Page 7...
Страница 23: ......