Siemens SINAUT ST7 - Standard Cable for the RJ12 Port

Mounting and Installation
6NH7811-0AA22 © Siemens AG 2002 All Rights Reserved
2-20 MD2 Modem (07/2002)
The following diagram is a a wiring example for the use of the optical relay on the
RJ12 port: when the RTS signal is active the optcal relay connects signal ground
and PTT input of a radio device.
Fig. 2-9 Wiring example for the optical relay on the RJ12 port
2.1.12 Standard Cable for the RJ12 Port
A 6NH7700-2AR60 cable is delivered with each MD2 modem. This enables the
MD2 modem to be connected with an LTOP overvoltage protection module. The
actual connection to the dedicated line is made through screw terminals on the
LTOP overvoltage protection module.
A spare connection cable can also be ordered by specifying the part number listed
below.
Table 2-16 Standard cable for the MD2 modem
Order no. Description Diagram
6NH7700-2AR60 Cable with 2 x RJ12 Western plugs for connecting the
MD2 modem (RJ12) to an LTOP overvoltage protection
module (RJ12). The cable can also be used for an MD2
that is integrated in a TIM.
Cable length 6 m
RJ12 RJ12
The pin assignment on both RJ12 plugs are identical and correspond to the
assignment listed in Table 2-15.
Note
When inserting the cable it is best to hold it directly below the RJ12 plug. The
insertion is then considerably easier than when holding the cable by the RJ12
plug. Make sure that the RJ12 plug clearly clicks when it is inserted!
1
6
RTS
PTT
Signal Ground
RJ12 Western
socket of MD2
Radio device