Kramer DigiTOOLS 7508 User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
7508
CV / YC to SDI Converter

Contents
i
Contents
1Introduction 1
2Getting Started 1
3Overview 1
4Your 7508 CV / YC to SDI Converter 2
5Using Your 7508 CV / YC to SDI Converter 3
5.1 Connecting a PC 4
5.2 Setting the Dipswitches 5
6Technical Specifications 6
7Communication Protocol 7
Figures
Figure 1: 7508 CV / YC to SDI Converter 2
Figure 2: Connecting a 7508 CV / YC to SDI Converter 4
Figure 3: Connecting a PC without using a Null-modem Adapter 5
Tables
Table 1: 7508 CV / YC to SDI Converter Features 3
Table 2: Setting the Dipswitches 5
Table 3: Technical specifications of the 7508 CV / YC to SDI Converter 6
Table 4: Structure of the Protocol 7
Table 5: Instruction Set for the 7508 7
Table 6: Input Standard 8

2900-
9999992 A1
ADDENDUM (this data is included at the end of the Overview section)
This addendum adds the following information to the user manual:
Caution – No operator-serviceable parts inside unit.
Warning – Use only the Kramer Electronics input power
wall adapter that is provided with this unit
1
.
Warning – Disconnect power and unplug unit from wall
before installing or removing device or servicing unit.
1 For example: model number AD2512C, part number 2535-000251

Introduction
1
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
350-plus different models now appear in 8 Groups1, which are clearly defined
by function.
Congratulations on purchasing your Kramer DigiTOOLS 7508 CV / YC to
SDI Converter, which is ideal for broadcast and production video studios,
postproduction and duplication studios, and non-linear editing. The package
includes the following items:
• 7508 CV / YC to SDI Converter
• Power supply
• Null-modem adapter and Windows®-based Kramer control software
• This user manual2and the Kramer concise product catalog/CD
2 Getting Started
We recommend that you:
• Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
• Review the contents of this user manual
• Use Kramer high performance high resolution cables3
3 Overview
The high quality Kramer DigiTOOLS 7508 CV / YC to SDI Converter is a
multi-standard converter of analog video (composite and s-Video) to
SMPTE-259M serial digital video (SDI). Many professional video units on
the market today, such as Betacam decks and DVD players have high quality
analog outputs, and the 7508 is ideal for preserving the quality, and
minimizing the artifacts, when converting to the digital domain.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com/manuals.html
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com (click “Cables and Connectors”
in the Products section)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your 7508 CV / YC to SDI Converter
2
In particular, the 7508:
• Converts the SDI on 2 buffered and reclocked SDI outputs
• Automatically detects the input standard (50/60Hz), generating the
appropriate output
• Uses true 10-bit digitizing, making it ideal for the most demanding
applications
• Has an RS-232 port and can be controlled via a user-friendly
Windows®-based program that can modify video parameters such as contrast,
saturation and hue, which may be stored in non-volatile memory
To achieve the best performance:
• Connect only good quality connection cables, thus avoiding interference,
deterioration in signal quality due to poor matching, and elevated noise levels
(often associated with low quality cables)
• Avoid interference from neighboring electrical appliances that may
adversely influence signal quality and position your Kramer 7508 away from
moisture, excessive sunlight and dust
4 Your 7508 CV / YC to SDI Converter
Figure 1 and Table 1 define the 7508 CV / YC to SDI Converter:
Figure 1: 7508 CV / YC to SDI Converter

Using Your 7508 CV / YC to SDI Converter
3
Table 1: 7508 CV / YC to SDI Converter Features
# Feature Function
1 12V DC +12V DC connector for powering the unit
2 SDI OUT 2 BNC Connector Connects to the SDI acceptor 2
3 SDI OUT 1 BNC Connector Connects to the SDI acceptor 1
4 Y/C INPUT 4p Connector Connects to the s-Video source
5 CV INPUT BNC Connector Connects to the composite video source
6 ON LED Illuminates when receiving power
7 RS-232 Port Connects to the PC or the Remote Controller
8 Dipswitches Dipswitches for setup of the unit
5 Using Your 7508 CV / YC to SDI Converter
You can use your 7508 CV / YC to SDI Converter to convert professional
quality composite video or s-Video (as the example in Figure 2 illustrates) to
one or two SDI video outputs.
To convert composite video or s-Video to up to 2 SDI video outputs, do the
following1:
1. Connect a composite video source (for example, a VCR) to the CV BNC
INPUT connector.
2. Connect an s-Video source (for example, a camera) to the Y/C 4p INPUT
connector.
3. Connect both SDI outputs to SDI acceptors as follows (when only one
SDI output is required, use either of the SDI outputs of the 7508, and
leave the other SDI output unconnected):
• Connect the SDI OUT 1 BNC connector to an SDI acceptor (for example,
an SDI monitor)
• Connect the SDI OUT 2 BNC connector to the second SDI acceptor (for
example, an SDI monitor)
4. Set the dipswitches, as section 5.2 describes
5. Connect the 12V DC power adapter to the power socket and connect the
adapter to the mains electricity.
The composite video2or s-Video3signal converts to SDI at both SDI
OUT 1 and SDI OUT 2.
6. Connect a PC (if required) to the RS-232 port (see section 5.1).
1 Switch OFF the power on each device before connecting it to your 7508. After connecting your 7508, switch on its power
and then switch on the power on each device
2 To choose the CV input, set the Y/C (DIP 1) OFF
3 To choose the Y/C input, set the Y/C (DIP 1) ON

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using Your 7508 CV / YC to SDI Converter
4
Figure 2: Connecting a 7508 CV / YC to SDI Converter
5.1 Connecting a PC
To connect a PC to the 7508 unit, using the Null-modem adapter provided
with the machine (recommended):
• Connect the RS-232 DB9 rear panel port on the 7508 unit to the
Null-modem adapter and connect the Null-modem adapter with a 9 wire flat
cable to the RS-232 DB9 port on your PC
To connect a PC to the 7508 unit, without using a Null-modem adapter:
• Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel
port on the 7508 unit, as Figure 3 illustrates(depending on whether the PC has
a 9-pin or 25-pin connector)

Using Your 7508 CV / YC to SDI Converter
5
Figure 3: Connecting a PC without using a Null-modem Adapter
5.2 Setting the Dipswitches
Configure the 7508 unit by setting the dipswitches, as Table 2 defines:
Table 2: Setting the Dipswitches
Dipswitch Set as follows:
1 Y/C ON for Y/C source; OFF for CV source
2 RESERVED OFF
3 PEDESTAL1ON for pedestal (7.5 IRE offset selection for NTSC); OFF for no pedestal
AUTO NTSC PAL PAL-M PAL-N NTSC-4 SECAM AUTO
4 STANDARD 1 OFF ON OFF ON OFF ON OFF ON
5 STANDARD 2 OFF OFF ON ON OFF OFF ON ON
6 STANDARD 3 OFF OFF OFF OFF ON ON ON ON
7 RESERVED OFF
8 PROGRAM ON for upgrading firmware; OFF for no upgrading firmware
1 NTSC offsets the black level within the active video signal by 7.5 IRE when selected

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Technical Specifications
6
6 Technical Specifications
Table 3 includes the technical specifications:
Table 3: Technical specifications1of the 7508 CV / YC to SDI Converter
INPUTS: 1 composite video: 1Vpp / 75Ωon a BNC connector
1 s-Video: 1Vpp, 0.3Vpp / 75Ωon a 4p connector
OUTPUTS: 2 SDI: SMPTE-259M, ITU-R BT.601 on BNC connectors
BANDWIDTH (-3dB): 0.2dB to 5MHz
DIFF. GAIN: 1%
DIFF. PHASE: 1%
K-FACTOR: <0.2%
S/N RATIO: 57dB
DIGITAL RESOLUTION: 10 bits
LUMA NON-LINEARITY: 1%
CHROMA/LUMA DELAY: <15ns
CONTROLS: Brightness, contrast, hue, saturation, sharpness via RS-232
POWER SOURCE: 12 VDC, 220mA
DIMENSIONS: 12cm x 7.5cm x 2.5cm (4.7" x 0.98" x 2.95"), W, D, H
WEIGHT: 0.3kg. (0.66lbs.)
ACCESSORIES: Power supply, Null-modem adapter, mounting bracket
1 Specifications are subject to change without notice

Communication Protocol
7
7 Communication Protocol
RS-232 communication with the 7508 complies with the following protocol.
The protocol uses 4 bytes of information, and data is at 9600 baud, with no
parity, 8 data bits and 1 stop bit.
Table 4: Structure of the Protocol
MSB LSB
INSTRUCTION
0 TO PC I5 I4 I3 I2 I1 I0
7 6 5 4 3 2 1 0
1st byte
DATA
1 D6 D5 D4 D3 D2 D1 D0
7 6 5 4 3 2 1 0
2nd byte
EXTENDED DATA
1 E6 E5 E4 E3 E2 E1 E0
7 6 5 4 3 2 1 0
3rd byte
MSB’s ADDR
1 E7 D7 0 0 1 1 0
7 6 5 4 3 2 1 0
4th byte1
Note that the MSB’s of the DATA (D7) and the EXTENDED DATA (E7) are in the fourth byte.
Terminology:
• TO PC is the “DESTINATION BIT”
• I4..I0 is the “INSTRUCTION”
• D7..D0 is the “DATA”
• E7..E0 is the “EXTENDED DATA”
• A0 is the “LSB of the MACHINE ADDRESS”
The destination bit, TO PC, is 0 when sending from the PC to the machine, or 1 when sending from the machine to the PC.
Table 5: Instruction Set for the 7508
# INSTRUCTION I5 I4 I3 I2 I1 I0
0 Reset 0 0 0 0 0 0
1 Read video standard 0 0 0 0 0 1
3 Read back-panel DIP-switch 1 (video format CV/YC) 0 0 0 0 1 1
10 Write EEPROM data – low address 0 0 1 0 1 0
11 Read EEPROM data – low address 0 0 1 0 1 1
12 Write I²C 0 0 1 1 0 0
13 Read I²C 0 0 1 1 0 1
16 Error 0 1 0 0 0 0
57 Enable “Power-down save” 1 1 1 0 0 1
61 Identify machine 1 1 1 1 0 1
1 Note that the MSB’s of the DATA (D7) and the EXTENDED DATA (E7) are in the fourth byte