S
2M
Connector Module
68
5. S
2M
Connector Module
The S
2M
connector module allows you to operate an OpenCom 130 / 150 on a
primary rate access. This access provides up to 30 voice channels. You can also use
the S
2M
port to network two systems, e.g. in order to use the OpenCom 130 / 150
as a subsidiary system or DECT server.
Note on DECT Applications in Conjunction with S
2M
If an S
2M
connector module is installed in the OpenCom 130 / 150, please consider
the following restriction for DECT applications: It is not sufficient, to install a U
pn
interface card (e.g. “4 x U
pn
”) into slot 2 (or into slot 3 with the OpenCom 150). In
every case, you need to run a U
pn
interface card (“4 x U
pn
”, “8 x U
pn
” or “2 x S
0
and
6xU
pn
”) in slot 1 in order to operate DECT applications properly.
Note: The maximum cable attenuation between the
OpenCom 130 / 150 and the other system (NT or telephone
exchange) must not exceed 6 dB. This corresponds to a
length of approx. 150 to 200 m, depending on the type of ca-
ble used.
Location of the S
2M
port on the basic module of the OpenCom 130
Location of the S
2M
port on the OpenCom 150
RJ45
S
0
1
RJ45
S
0
2
LAN V. 24
Actuator
1+2
Sensor
1+2
a/b
1+2
a/b
3+4
S
0
2
U
pn
2+3
DC
in
Sensor
3
S
2M
U
pn
1
Default setting
V. 24
1-21-1
1-41-3
1-5
S
0
1S
0
2
S
0
3S
0
4
Slot 1
S
0
1
S
0
2
2-22-1
2-42-3
2-5
Slot 2
5-25-1
5-45-3
5-5
Slot 5
4-24-1
4-44-3
4-5
Slot 4
3-23-1
3-43-3
3-5
Slot 3
1+2 3+ 4
Actuator
1+2 Sensor 3+4
Door
1+2
S
2M