Ross 4500DR-104-07, User Manual, Page: 22 / 161

22 • Hardware Overview SRG-4500 User Guide (v7.0)
› Switching the rotation direction will preserve the modified rate, assuming that the direction change occurred
with minimal delay.
4. Removable Power Supplies (not shown)
There are two Removable Power Supply assemblies, installed and secured into the front of the SRG-4500, either
side of the LCD display. These supplies can be removed or inserted while mains power is still present. Should it
become necessary to replace one or both of the Removable Power Supply assemblies, the instrument does not
have to be removed from the rack.
Rear Panel Overview
The rear panel provides connections to the power supplies, signal outputs, inputs, and ports for communication over
Ethernet.
Figure 3.2 SRG-4500 — Rear Panel Components
1. Power Connectors
The SRG-4500 is designed to operate from a single-phase power source with the neutral conductor at or near
earth ground. The line conductor is fused for over-current protection. A protective ground connection through the
grounding conductor in the power cord is essential for safe operation. Safety earth studs are also provided for
earth bonding the chassis if you so require.
The SRG-4500 operates from an AC line frequency of 48Hz to 63Hz, over the range of 85VAC to 250VAC,
without the need for user configuration. Refer to the chapter “ Technical Specifications ” on page 101 for
additional information on power and environment requirements.
You need to provide two power connections (for the two Power Connectors). For full power security, these
should be on separate, independent and secure power grids. However, you still gain the security of power supply
failure redundancy if you use the same power grid for both connections.
2. REF LOOP
This pair of BNCs allow the input of a remote reference signal. This signal may be NTSC Black-Burst, or PAL
B/G.
With the reference signal applied to one BNC, the other BNC must be terminated (or connected to another unit
which is ultimately terminated).
If the SRG-4500 is to be used as a Master reference (i.e. not Genlocked), you do not have to supply a signal, and
you may leave these BNCs unconnected. However, it is always wise to add a termination onto one BNC of an
unused looping pair, in order to avoid having a “floating” input.
3. COMPOSITE Output
This pair of BNCs provides two outputs of the selected Analog Composite Video Pattern. The output format can
be PAL, NTSC-M or NTSC-J.
Warning
—
Do Not Operate Without Covers
. Do not operate this product with covers or panels
removed.
GbE / PTP
100-BaseT
GPS 1Hz 10MHz IN 10MHz WK/TTL1 WK/TTL2 6Hz/TTL3 DARS AES 1 AES 2
SDI 2 BLACK
SDI 4 BLACK BALANCED AUDIO/AES/LTC
COMPOSITE BLACK 1 REF LOOP TRI/BLACK 2 TRI/BLACK 3 TRI/BLACK 4 SDI 1
SDI 3
SDI 1 BLACK
SDI 3 BLACK
SDI 2
SDI 4
2 3 4 5 6 7 8
9
1 1