Grass Valley Fiber Media Converter - Manual (Page 25)

Media Converters — Instruction Manual 25
Installation and Operation
18 Channel Media Converter Rack Mount and Desk Top Frames
The VMCR-18-R and VMCR-18-T frame models allow up to 18 media con-
verter devices (both VMC and MVMC device types) to be housed in a
frame in any combination of receivers or transmitters. This configuration is
ideal for more robust applications where a larger number of channels are
required. Power is supplied internally to each device from the frame power
supply. The VMCR-18-R model can be mounted in a video rack as
described in
Rack Mounting the VMCR-18-R on page 27 .
Rear Frame Overview
The rear of the two available VMCR frames are identical and are shown in
Figure 11 . Two AC power inputs are provided for the internal power sup-
plies. A Digital Diagnostics Monitoring Interface (DDMI) Ethernet port is
provided on the far right of the frame for accessing diagnostic information
with a web browser.
Figure 11. Frame Rear Overview
AC Power Inputs and Power Switch
The VMCR-18-R and VMCR-18-T are equipped with two AC power inputs
(
Figure 12 ). Power may be supplied to the units using one or both AC
inputs. If both AC inputs are used they will act as redundant supplies (if
either one fails the other is capable of fully powering the system). The
rating for the AC power input to the system is 90 to 264V, 47 to 63 Hz.
Figure 12. AC Power Inputs and Power Switch
AC power inputs DDMI (Digital Diagnostic Monitoring Interface)
Fuse holders