Grass Valley CRSC v.3.2 - Manual (Page 24)

12
Introduction
Usage Tips
Where a switch setting supports multiple formats, the format is governed by the video reference
applied to the router and must be compatible with that reference format.
 When a control panel is mounted on a router or remote panel module, it conceals the rotary
switch. You must remove the control panel when you are setting the rotary switch.
 Every time you make a switch change, power-cycle the router or remote panel module.
Usage Tips
Network Speed
Compact router networks are Ethernet LANs (100 Mb/s, UDP). That means they are reasonably
fast, and have potentially many network configuration options. However, no matter how fast the
network is, the amount of network traffic increases exponentially with the number of devices on
the network. At some point, the traffic exceeds the capacity of the network. The practical limit is
4 compact routers and about 16 remote panel modules.
Network Considerations
Compact routers (and remote panel modules) were designed to use 10/100BaseT networks,
occasionally auto-negotiating to 10BaseT.
Modern 100/1000BaseT switches (such as those offered by Cisco) will stop sending router traffic
when a compact router goes to 10BaseT.
Such auto-negotiating tends to occur where CAT 5 cable lengths exceed 25 meters.
Our recommendation for network equipment is this: use a 10/100BaseT unmanaged switch for
your compact router network. These switches should reliably support CAT 5 to 100 meters or
better.
The CR6400 routers are immune to this problem, having parts of more recent design.
Cabling
Compact routers generally use 75
W BNC cable for signal connections. However, machine control
connectors are RJ-45 and analog audio connectors are DB25. Each DB25 connector supports 8
audio channels (4 stereo pairs). You will need to acquire breakout cables to connect individual
analog audio devices, such as Grass Valley’s WC0053 breakout cable.
CR6400 routers use DIN 1.0/2.3 connectors for signal connections. We call these connectors
“coax” connectors.
The CR Series devices use RJ-45 connectors for Ethernet.
Power-Up Re-initialization
A router or remote panel module re-initializes to its factory default settings if you power it up
with the rotary switch set to zero (0). If you reset the frame by accident, and the frame is in your
network, you will have to add the frame again and reconfigure it.