Accessories
C.2 Modems
CP 1243-8 IRC
Operating Instructions, 06/2015, C79000-G8976-C385-01
125
Due to the design, the modems can be installed on an S7-300 standard rail. As an
alternative, the modems can also be installed on a 35 mm standard mounting rail. In this
case, the adapter is required that can be ordered separately.
The following figure shows the modem modules with further details (schematic
representation with the covers removed).
Figure C-4 Connectors of the modems
The modems are supplied along with the listed WAN connecting cable.
Table C- 1 Overview of the classic modem variants
Short name
Article number
Description
MD2
6NH7810-0AA20
Dedicated line modem, with RS-232/RS-485 interface, for
multipoint connection, can be tapped, can also be used as
a repeater, max 19200 bps
Including plug-in cable 6NH7700-2AR60 (RJ-12-RJ-12),
length 6 m, for connecting MD2 with LTOP. *
MD3
6NH7810-0AA30
Modem for the analog telephone network, with RS-232/RS-
485 interface, max. 33600 bps.
Can also be used as a dedicated line modem for a point-to-
point link, max. 33600 bps in the voice band.
Including plug-in cable 6NH7700-3BR60 (RJ-12-RJ-
12/TAE6), length 6 m, for connecting MD3 with a telephone
socket (TAE6 or RJ-12) or LTOP (in standard operation). *
MD4
6NH7810-0AA40
Modem for the digital ISDN network, with RS-232/RS-485
interface, max. 64000 bps.
Including plug-in cable 6NH7700-4AR60 (RJ-12-RJ-45),
length 6 m, for connecting MD2 (RJ-12) with an ISDN-S
0
socket (RJ-45). *
R-ADAPT
6NH7760-0AA
Adapter for mounting the modems MD2/MD3/M4 on a 35
mm DIN standard rail
* You will find the description of the plug-in cables in the section Cables for the WAN
Содержание CP 1243-8 IRC
Страница 10: ...Table of contents CP 1243 8 IRC 10 Operating Instructions 06 2015 C79000 G8976 C385 01 ...
Страница 104: ...Diagnostics and upkeep 6 3 Module replacement CP 1243 8 IRC 104 Operating Instructions 06 2015 C79000 G8976 C385 01 ...
Страница 112: ...Approvals CP 1243 8 IRC 112 Operating Instructions 06 2015 C79000 G8976 C385 01 ...
Страница 114: ...Dimension drawings CP 1243 8 IRC 114 Operating Instructions 06 2015 C79000 G8976 C385 01 Figure B 2 From above ...
Страница 134: ...Accessories C 4 Connecting cables CP 1243 8 IRC 134 Operating Instructions 06 2015 C79000 G8976 C385 01 ...