Introduction to the SINAUT ST7 system
2.4 The SINAUT ST7 modems
SINAUT ST7 Station control system - System Manual
60
System Manual, 05/2007, C79000-G8976-C178-06
2.4.2
Overview of all modem variants and accessories
The modems are supplied along with the necessary WAN connecting cable. Cables for
connecting the modems to a TIM must be ordered separately.
Table 2-2
Overview of all modem variants
Short name
Order no.
Explanation
MD2
6NH7810-0AA20
Dedicated line modem
for multipoint connection, can be tapped, can also be used
as a repeater,
max 19,200 bps
MD3
6NH7810-0AA30
Modem for the analog telephone network,
max. 33,600 bps
Can also be used as a dedicated line modem for a point-to-
point link,
max. 33,600 bps in the voice band
MD4
6NH7810-0AA40
Modem for the digital ISDN network,
max. 64,000 bps
R-ADAPT
6NH7760-0AA
Adapter for installing the modem MD2 ... MD4 on a 35-mm
standard rail
2.4.3
Technical specifications of the SINAUT ST7 modems
Technical specifications of the MD2 dedicated line modem
MD2
Interfaces
•
Attachment to dedicated line
•
RS-232 attachment to DTE
•
RS-485 attachment to DTE
•
Connection to power supply
•
RJ-12
•
9-pin D-sub male connector
•
9-pin D-sub female connector
•
4-pin terminal strip
Power supply
24 V DC
Current consumption
•
From 24 V DC
•
100 mA
Power loss
2.4 W
Permitted ambient conditions
•
Operating temperature
•
Transport/storage temperature
•
Relative humidity
•
0 °C t60 °C
•
-40 °C t70 °C
•
Max. 95 % at +25 °C
Construction
•
Module format
•
Dimensions (W x H x D) in mm
•
Weight
•
Compact module for S7-300, double width
•
80 x 125 x 120
•
Approx. 300 g
Degree of protection
IP 20