ZyXEL Communications Gateway 400 - Installation Diagram for S0 Bus

Gateway 400 User Guide | Installation
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Figure 2 Installation diagram for mixed operation of point-to-point and point-to-multipoint connections
3.1 Installation diagram for S
0
bus
Figure 3 Installation diagram for S
0
bus
Note
In the Gateway 400, the terminating resistors are already integrated.
PABX
GATEWAY
400
Option 1
Option 2
ISDN Phones
1 2 3 4 5 6 7 8
RJ45 connector
cable side
Pin 3 RX+ 2a
Pin 4 TX+ 1a
Pin 5 TX- 1b
Pin 6 RX- 2b
1a 1b 2a 2b
IAE socket
1a 1b 2a 2b
IAE socket
a1b a2b
resistors
100Ω 100Ω
Gateway 400
S
0
bus
Terminating
1a 1b 2a 2b
IAE socket