Inputs. Harris XHD 3902

The XHD 3902 offers broadcast-quality HD-SDI/SD-SDI upconversion, crossconversion, and downconversion with aspect ratio conversion (ARC), and closed-captioning support. The "U" version of the XHD-3902 is an upconverter; the "C" version is a crossconverter, and the "D" version is a downconverter. The "A" version is a standard-definition aspect ratio converter. XHD-3902-U, -C, and -D modules include the ARC capabilities of the "-A" version. The XHD-3902 is also available in a "-UCD" version, capable of any of these different types of conversion, one at a time. There are two multiple path converters in the XHD-3902 platform: the XHD-3902-M and the XHD-3902-KF. The "-M" package is a system capable of simultaneously processing two independent parallel paths of upconversion, crossconversion, or downconversion. "-KF" modules simultaneously upconvert two independent channels, making it ideal for HD key/fill applications where the key and fill signals are SD-SDI and require upconversion to HD-SDI.

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Chapter 5: Specifications

Inputs

SD/HD-SDI Video

Table 5-1. SD/HD-SDI Video Input Specifications

Item

Number of inputs

Standards

Input formats

Connector

Impedance

Return loss

Equalization

Specification

• SMPTE 259M-C (270 Mbps, 525/625 component video)

• SMPTE 292M (1.485, 1.485/1.001 Gbps)

• 525, 59.94 Hz

• 625, 50 Hz

• 1080i, 59.94 Hz

• 720p, 59.94 Hz

• 1080i, 50 Hz

• 720p, 50 Hz

• 1080p, 29.97 Hz

• 1080p, 25 Hz

• 1080psf, 23.98 Hz

• 1080p, 23.98 Hz

BNC (IEC169-8)

>15 dB (typical) to 1485 MHz

240 m Belden 8281 cable at 270 Mbps; adaptive cable equalization up to 393 ft

(120 m) of Belden 1694A at 1.485 Gbps

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Chapter 5: Specifications

AES (Balanced)

Table 5-2. AES (Balanced) Specifications

Item

Number of inputs

Standard

Type

Connector

Sensitivity

Impedance

Common mode rejection

Input audio rate

Specification

AES 3

Balanced, transformer coupled

DB-25, female

<200 mV

110

Ω ± 20% from 0.1 to 6 MHz

0 V to 7 V (0 kHz to 20 kHz)

32 to 108 kHz

AES/DARS (Unbalanced)

Table 5-3. AES/DARS (Unbalanced) Specifications

Item

Number of inputs

Standard

Type

Connector

Sensitivity

Impedance

Return loss

Input audio rate

Specification

3 (1+ 2)

AES 3, SMPTE 276 M

Unbalanced, AC coupled

BNC (IEC169-8)

<100 mV

>30 dB, 0.1 to 6 MHz

32 to 108 kHz

XHD-3902 Installation and Operation Manual 147

Chapter 5: Specifications

Genlock

Table 5-4. Genlock Specifications

Item

Connector

Impedance

Return loss

Common mode range

CMRR

Input level

Signal type

Specification

BNC (IEC169-8)

• >40 dB (typical) to 6 MHz

• >35 dB (typical) to 30MHz

5.5 Vpp

60 dB @ 60 Hz, 5 Vpp

• 1 Vpp, -6.0 dB to +6.0 dB for NTSC/PAL-B

• 1 Vpp, -6.0 dB to + 6.0 dB for Tri-Level

Sync (1080i/1080p/720p)

• NTSC/PAL-B Analog composite

• ±300 mV Tri-Level Sync

• (1080i, 59.94 Hz and 50 Hz)

• (720p, 59.94 Hz and 50 Hz)

• (1080p, 29.97 Hz and 25 Hz)

• (1080psf, 23.98 Hz)

• (1080p, 23.98 Hz)

148 XHD-3902 Installation and Operation Manual

Key features

Broadcast-quality HD-SDI/SD-SDI upconversion, crossconversion, and downconversion
Aspect ratio conversion (ARC)
Closed-captioning support
Clean switching capabilities
Protected mode operation
Error monitoring on all SDI inputs and AES inputs
Automatic reconfiguration between standard conversion modes

Frequently asked questions

The XHD-3902 is available in several versions, including the "-U" (upconverter), "-C" (crossconverter), "-D" (downconverter), "-A" (SD-SDI aspect ratio converter), and "-UCD" (up, cross, and downconverters). The "-M" version is a multipath converter capable of processing two independent paths of conversion, while the "-KF" version is a multipath upconverter designed for key/fill applications.

The XHD-3902 supports HD-SDI, SD-SDI, and AES audio signals.

The XHD-3902 supports closed captioning, including transfer and transcoding of closed captioning information between formats. It also provides remapped closed captioning data output per SMPTE 333M over the RS-232 port.