®
ANALOG
MODEM
MDM56
BO
mdm56bo_en_12/07
The MDM56 BO analog modem was designed with the intention to provide remote
communication with SATEL made alarm control panels. It is dedicated for installation at the
INTEGRA and CA-64 series control panels. It can be connected to the control panel as
a so-called "external modem". These control panels are fitted with a built-in modem, but its
transmission rate is limited to 300 bauds. Connection of the external modem enables
programming with the same speed as with the computer being directly connected to the
control panel RS-232 port.
Modem features
•
Maximum data transmission speed: 56 kb/s.
•
Supported protocols: ITU-T V.90, V.34, V.32bis, V.32., V.23, V.22bis, V.22, Bell 212A,
V.21 and Bell 103.
•
Automatic recognition of transmission speed through RS-232 port.
•
+12 V DC power supply, typical for security alarm systems.
Modem description
Fig. 1. Analog modem MDM56 BO
Explanations for Fig. 1:
1 –
LEDs:
DTR
–
modem ready to receive data
CTS
– modem ready for data transfer
TXD
– modem is transmitting data through RS-232 port
RXD
– modem is receiving data through RS-232 port
PWR
– power
2 –
+12V
and
COM
terminals for power connection from control panel or power supply unit
3 –
TIP
and
RING
terminals for analog telephone line connection
4 –
RS-232
socket for modem connection to alarm control panel
TIP RING
+12V COM
RS232
DTR
CTS
TXD
RXD
PWR
1
3
2
4
