The combined serial Ethernet 10/100Base-T interface does not have an Auto-MDI-X func-
tion.
3.9.5.2 ISDN So interface
bintec R4300 has two additional ISDN-So interfaces, which can be used for back-up func-
tions, for example.
The connection is made via an RJ45 socket:
Fig. 53: ISDN So BRI interface (RJ45 socket)
The pin assignment for the ISDN So BRI interface (RJ45 socket) is as follows:
RJ45 socket for ISDN connection
Pin
Function
1
Not used
2
Not used
3
Transmit (+)
4
Receive (+)
5
Receive (-)
6
Transmit (-)
7
Not used
8
Not used
3.9.5.3 X.21 interface
bintec R4300 has two X.21 interfaces
The connection is made via a 26-pole mini Delta ribbon socket:
Fig. 54: X.21 interface (26-pole mini Delta ribbon socket)
The 26-pole mini Delta ribbon socket has the following pin assignment:
3 Technical data
Funkwerk Enterprise Communications GmbH
96
bintec R1xxx/R3xxx/R4xxx
