S2M - Anschlußbelegung
Anschlußbelegung
E1-Modul
PIN RJ45 |
PIN
DB-15 |
Funktion |
Normal
marking on NT |
1 |
8 |
Receive,
NT to TE (+) |
S2Mab/a |
2 |
15 |
Receive,
NT to TE (-) |
S2Mab/b |
4 |
9 |
Transmit,
TE to NT (+) |
S2Man/a |
5 |
2 |
Transmit,
TE to NT (-) |
S2Man/b |
3,6-8 |
|
Not
used |
|
Special Note for NTs in Germany
In
Germany, the send lines (NT->TE) on the connector
LED1
Color: green
Marked:
“NT”
Meaning:
LED-on normally means that the
proper
voltage is being supplied.
LED2
Color: red
Marked:
“UK2”
Meaning:
LED-on (or blinking) normally means
that
the S 2M interface has not been activated at
the
switching station. In such cases, you will
have
to contact you local telephone company to
have
the interface activated.
LED3
Color: red
Marked:
“S2M”
Meaning:
LED-on normally means that signals
are
not being received from the end device.