NV5256 Machine Control Router • User’s Guide
25
3. Detail
Terminators
Inter-Frame Communication
The expansion connections transport machine control data.
Additionally, the two frames must communicate with each other. Connect one 10Base2 connector
on the master frame, with 50
Ω
coaxial cable, to a 10Base2 connector on the slave frame. Place a
50
Ω
terminator on each unused 10Base2 connector.
Terminators
10Base2
The NV5256 ships with two 50
Ω
terminators for each frame. The terminators are required for an
expanded router.
S
In older routers, termination for a stand-alone router is required. In newer routers, it is not.
If you have an expanded router, use terminators as described under
Ethernet
The NV5256 ships with 1 Ethernet terminator for each router control card. These terminators are
required if you do not use Ethernet (for example, if you are using a third-party router control sys-
tem). The router control cards will not come out of reset without either an Ethernet connection or
an Ethernet terminator.
(The terminator looks like an RJ-45 plug without the cable.)
Plug a terminator into the Ethernet port of every router control card that does not use Ethernet.