GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
11
REF IN – Studio reference input
For external synchronization, connect a black studio reference signal to the BNC labeled
REF IN
.
•
The loop must be terminated if not used.
The reference input must conform to SMPTE 170M/SMPTE 318M/ITU 624-4/BUT 470-6 for standard definition
signals and SMPTE 274M / SMPTE 296M for high definition signals and is used to phase the HD/SD SDI outputs to
the studio. A reference mismatch may occur if there is a difference between the input video format’s frame rate and
the reference format’s frame rate. When a mismatch occurs, the output will freeze to the reference frame rate and
produce an input error and the card-edge Status LED will turn red to indicate the mismatch.
Note that in the case of HD signals of the same frame rate, any reference signal may be used to genlock any output
signal, regardless of scan type (progressive or interlaced). When a 720p/tri-level sync reference signal is used with an
interlaced output, the output is synchronized but there may be a delay of one field depending on when the
synchronization started.
3G/HD/SD SDI IN – Serial digital HD/SD input
Connect up to two serial digital video signals, conforming to the SMPTE 424M standard for 3G input signals, SMPTE
292M standard for HD input signals or SMPTE 259M standard for SD input signals, to the BNC labeled
HD/SD SDI
IN
. The XVP-3901 will automatically switch to the detected line/frame rate format.
3G/HD/SD SDI OUT – Serial digital video outputs
The XVP-3901 provides two pairs of 3G/HD/SD SDI video outputs on BNC connectors, labeled
3G/HD/SD SDI OUT
A1 & A2,
and
3G/HD/SD SDI OUT B1 & B2
. The SDI video signal conforms to the SMPTE 424M, SMPTE 292M or
SMPTE 259M-C standard.
AES IN / OUT – Discrete AES3 digital audio inputs and outputs (8)
The AES inputs and outputs can be configured for 110 ohm impedance using WECO connectors, or 75 ohm
impedance using BNC connectors. The choice is made through the use of an appropriate rear connector panel.
Rear Panel Type
Connector / Impedance
XVP-3901-110-3TRP-F
WECO 110
Ω
XVP-3901-110-3TRP
WECO 110
Ω
XVP-3901-75-3TRP-F
BNC 75
Ω
XVP-3901-75-3TRP
BNC 75
Ω
To allow for a double-width rear panel, two versions (75
Ω
and
110 Ω)
of a panel with the AES IN and OUT presented
on a 26-pin D-SUB connector are available:
Rear Panel Type
Connector / Impedance
XVP-3901-110-3DRP-F
D-SUB 26
110
Ω
XVP-3901-75-3DRP-F
D-SUB 26
75
Ω