Grass Valley 8901 - Manual (Page 8)

8 8901/8902/8906 Instruction Manual
Introduction
8901 Video DA
The 8901 is a utility DA ideal for short cable runs of high quality signals. A
flat frequency response and impressive signal-to-noise ratio enable high
quality copies of the input signal to all eight outputs.
8902 Video DA
The 8902 Equalizing DA offers the same features as the 8901 Utility DA as
well as input cable equalization which accurately compensates for attenu-
ation and phase errors induced in long cable runs. The cable equalization
is custom-designed for each specific cable type. In addition to the DC and
AC coupling modes is a DC restoration mode which smoothly restores the
blanking level DC component to zero volts.
8906 Video DA
The 8906 Clamping DA with input presence detection offers the same fea-
tures as the 8901 and 8902 modules plus a dual speed clamp which pro-
vides flexibility with clamp-induced noise versus single-ended hum
rejection. A white clip control can be enabled to eliminate positive-going
pulses above a user-selected threshold.
Also included on the 8906 module is a video presence detection circuit that
generates SNMP traps when video is not present. Control of SNMP
reporting can be enabled and disabled by the user with the available
remote controls in 8900 video frames.