Grass Valley NV5256 v.1.8 - Manual (Page 19)

NV5256 Machine Control Router • User’s Guide 11
3. Detail
Chapter 3 describes the structure and use of the NV5256 Machine Control Router. It presents the
following topics:
• Connections
• Alarms
• Power
• I/O Cables
• Port Cards
• Expansion
• Terminators
• Jumpers
Connections
The rear of the router has a bay that holds up to 16 I/O backplanes. Unused backplane slots are gen-
erally covered with a plate that improves cooling air flow. Each backplane has 16 RJ-45 connec-
tors. All the backplanes are identical, but the I/O cards are of two types: RS-422 and RS-232.
S Ports on a single card are either all RS-422 or all RS-232.
To the left of the backplanes are a variety of control connectors and reference connectors. To the
right of the backplanes are expansion connectors and power connectors.