MBLM-2 is a micro controller V32.bis full-duplex phone modem,
suited for remote transmission of m-bus or other networks
for remote reading. It is equipped with RS-232С interface
to connect to server (master modem) or to m-bus power supply
converter (slave modem).
user
manual
| connection protocol |
V.32 bis / V.22 |
| connection speed |
1200/2400/4800/7200/9600/12000/14400 bps |
| power supply |
9 Vac/150mA or 12 Vdc/150mA, adapter 2 mm |
| power consumption @ 12Vdc |
< 0.4W (idle), < 0.8W (online) |
| serial port bps |
2400/4800/9600/19200 bps |
| work temperature |
from -20° C to +50° C |
| storage temperature |
from -50° C to +90° C |
| humidity |
40 ÷ 90 % |
| dimensions (HxWxD), mm |
125/70/30 mm |
| protection class |
IP30 |
| own weight |
160 g |
МBLM-2 starts work immediately after power supply is plugged
in. After initialization (about 2s), MBLM-2 enters in receiving
command mode (master modem) or waits for connection (slave
modem). The work mode (master/slave) is determined by the
condition of pin RTS (pin 7) of serial port, which is monitored
constantly. The following commands can take place:
- info – returns information about
MBLM-2 software version
- prm – returns information with values
of all stored parameters. Also can be used to change
parameter value
- reset – restarts and initializes
again МBLM-2
- dial number – establishes
connection with this ‘number’. Only digits are allowed
for 'number'. This command is accepted only from master
modem and only dial tone is possible.
Commands info and prm
are valid when slave modem too, when they are send by master
modem through the phone line. That way master modem can
change remotely parameters of slave modem or to check their
current value and software version of the remote modem.
