Instruction Manual 071- 0719- 00 F I R S T P R I NT I N G : A P RI L 2 0 0 0 898 1 F S DIGITAL FRAME SYNCHRONIZER MODULE
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Contents About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Frame Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents iv 8981FS Instruction Manual
Preface About This Manual This manual describes the features of a specific module of the 8900 Series Modular Products family. As part of this module family, it is subject to Safety and Regulatory Compliance described in the 8900 Series frame and power supply documentation (see the 8900TX/8900TF/8900TFN Frames Instruction Manual).
Preface vi 8981FS Instruction Manual
8981FS Digital Frame Synchronizer Module Introduction The 8981FS is a component digital frame synchronizer module compatible with the 8900 series frames. The video input and output are 270 Mb serial digital and reference is analog color black. The module can also be operated as a fixed delay with adjustable output timing offset relative to the video input. This mode does not require a reference input.
981FS Digital Frame Synchronizer Module 8981FS module features include: 2 ■ Provides user-selectable frame synchronization or fixed signal delay. ■ Supports 270 Mb Component serial digital input and output. ■ 10-bit signal processing assuring broadcast quality. ■ Adjustable gain and offset of color and luma components. ■ Module is hot swappable (can be removed and replaced while frame power is on). ■ User settings are stored in non-volatile memory and are maintained when power is cycled.
Installation Installation Installation of the 8981FS module consists of: 1. Placing the module in the proper frame slot, and 2. Cabling and terminating signal ports. The 8981FS module can be plugged in and removed from an 8900 Series frame with power on. When power is applied to the module, LED indicators reflect the initialization process (see Power Up on page 7).
8981FS Digital Frame Synchronizer Module Module Placement in the 8900 Frame There are ten slot locations in the frame to accommodate either analog or digital modules. These are the left ten locations. Refer to Figure 1. The two slots on the right are allocated for the power supplies. For additional information concerning the Power Supply module, refer to the 8900 frame manual. The third slot from the right is allocated for the controller module—either a Frame Monitor Module or a Network Interface Module.
Installation Figure 2.
8981FS Digital Frame Synchronizer Module Cabling Note At the back of this manual are overlay cards that can be placed over the rear connector BNCs to identify the specific 8981FS connector functions. Input Connect an input source to the input connector, J7 (see Figure 3). The 8981FS input will accept either 8- or 10-bit Serial Digital Component video per SMPTE 259M-C or EBU technical standard 3267. Figure 3.
Power Up Power Up The various front LED indicators and configuration switches are illustrated in Figure 4. Upon power-up, the green PWR LED should light and the yellow CONF LED should illuminate for the duration of module initialization. Operation Indicator LEDs With a valid input signal connected, the green PWR LED and one of the green signal standard LEDs (525 or 625) should illuminate.
8981FS Digital Frame Synchronizer Module Table 2 describes the output that will be seen under the various possible input operating modes and conditions. Table 2. Possible Operating Conditions Mode Settings Resulting Output N.A.1 Video input present Valid reference input present Normal output Off Off No video input present Valid reference input present Passes any input signal On Freeze of last good field Frame Sync N.A.1 Off No Video input present Valid reference input present N.A.
Configuration Configuration This section describes: ■ Onboard configuration hardware (switches and LEDs), ■ Module operation modes and appropriate setups, ■ Using the onboard switches to make configuration settings, and ■ Remote configuration and monitoring using the 8900NET interface. Configuration Switches and LEDs The 8981FS module can be configured locally using the onboard rotary and toggle switches shown in Figure 5. Two LEDs are used to indicate status of the configuration process.
8981FS Digital Frame Synchronizer Module Figure 5. Module Configuration Switches and LEDs JP5 Local Remote Place jumper in local position to lock out remote access.
Configuration setting does not result in at least this much signal delay from video input to output, the module will delay the signal up to one frame. The output timing controls can adjust the serial digital output timing: ■ ± 1 field, in 1 H-line steps and ■ Over 1 line in 37 ns steps. Total timing range is slightly greater than one full frame.
8981FS Digital Frame Synchronizer Module Input Signal EDH Detection The module monitors its video input signal for EDH (Error Detection and Handling) checkwords. If checkwords are present, active picture only or full field input signal errors will cause the front of module FAULT indicator to illuminate briefly each time an error is detected. The EDH Error Mode control function determines whether ACTIVE PICTURE or FULL FIELD errors will cause the indicator to illuminate.
Configuration Gain can be adjusted ±40%. (See Table 3 on page 15, Function Switch positions 1 though 6, Bank 2) Offset and gain adjustment values set in Variable mode will be retained if the mode setting is changed to UNITY. If the setting is later changed back to VARIABLE these offset and gain settings will return. Hot Switch Handling The 8981FS module has a number of mode setting options for handling switching transients from a routing switcher feed.
8981FS Digital Frame Synchronizer Module Any time the module enters the freeze mode horizontal (HANC) or vertical (VANC) blanking interval embedded data will be removed and replaced by black level data. This applies to both momentary freezes due to input timing steps and manually initiated frame or field freezes. This does not apply to EDH check words that are always recalculated and inserted in the output signal.
Configuration On-board Module Configuration To make configuration settings on the module: 1. Rotate the Function Switch to the Bank 1 (2ND FUNC LED off) or Bank 2 (2ND FUNC LED on) and to the desired function within that bank. 2. Move the Toggle Switch to the up or down position to set the desired function. Table 3.
8981FS Digital Frame Synchronizer Module Table 3. 8981FS Configuration Functions - (continued) Function Switch Toggle Switch Up Toggle Switch Down 1 Increase Decrease Adjust Y channel offset ±31 least significant bits. 2 Increase Decrease Adjust B-Y channel offset ±31 least significant bits. 3 Increase Decrease Adjust R-Y channel offset ±31 least significant bits. 4 Increase Decrease Adjust Y channel gain ±49%. 5 Increase Decrease Adjust B-Y channel gain ±49%.
Remote Configuration and Monitoring Remote Configuration and Monitoring 8981FS configuration and monitoring can be performed using the 8900NET interface in 8900TF or TFN frames (see Figure 6). This section describes the GUI access to the module configuration functions. Refer to the 8900NET Network Interface Module Instruction Manual for information on setting up and operating the 8900 frame network. Figure 6. 8900NET GUI The links section lists the frame and its current modules.
8981FS Digital Frame Synchronizer Module Module Configuration Displays The 8900 GUI provides the following links and displays for the 8981FS. The module name shown in Figure 7 is “SDI Frame Synchronizer/Delay.” The name is user determined and is assigned using the module’s Configuration display.
Remote Configuration and Monitoring Using GUI Controls Variable settings can be made using one of two control modes— Slider or Numeric. Figure 8 illustrates both types. Note Numeric displays are for approximate values only. Calculation of displayed values are subject to decimal place truncation. Variation from the absolute value increases at higher adjustment levels. Figure 8.
8981FS Digital Frame Synchronizer Module Module Operation Mode Selection Access the Mode display shown in Figure 10 to perform the following (refer to Module Operation Modes on page 10). ■ Choose between Frame Synchronizer or Delay mode. Note Use This Link If a sync reference signal input is not detected by the 8981FS, the module will automatically function as a fixed video signal delay.
Remote Configuration and Monitoring Timing/Delay Settings Access the Timing/Delay display shown in Figure 11 to perform the following (refer to Module Operation Modes on page 10). Use This Link ■ Adjust Horizontal and Vertical timing or delay. ■ Activate or terminate a manual output Freeze. ■ Disable or enable and setup Auto-freeze operation. ■ Disable or enable and setup Remote Auto-freeze GPI. Figure 11. Timing/Delay Setup Display Current setting is indicated by the point of color change.
8981FS Digital Frame Synchronizer Module Figure 12 illustrates timing adjustment using the Numeric control mode. Figure 12. Numeric Timing Controls Enter a numeric value or use increment/decrement buttons. Timing values range from -49% to +49%. Delay values range from 0.0 to maximum.
Remote Configuration and Monitoring Video Processor Controls Access the Processor Controls display shown in Figure 13 to perform the following (refer to Signal Processing — Offset and Gain on page 12). Use This Link ■ Select Variable or calibrated Unity settings. ■ Adjust variable video Gain and Offset settings. Offsets are adjustable in approximately 3.5% increments (10-bit video). Gain can be adjusted ±49%. In Unity mode the slider or numeric controls are dimmed and are not available (N/A).
8981FS Digital Frame Synchronizer Module Recall or Save Settings Access the Recall or Save Settings display shown in Figure 14 to perform the following (refer to Store/Retrieve Configuration Settings on page 14). Use This Link ■ Restore factory default settings. ■ Store the current user settings for future recall. ■ Recall previously stored user settings. Figure 14.
GPI Freeze Trigger Circuits GPI Freeze Trigger Circuits Figure 15 provides two sample circuits, with and without remote indicator LED, that can be used to manually trigger the Freeze output when the GPI Remote Freeze function is enabled (see Table 3 on page 15). Refer to the Configuration table to select whether the 8981FS alternates between freeze/no freeze or stays in freeze mode only while the remote freeze switch is closed. If a Remote Freeze indicator is not required, no diodes are needed.
8981FS Digital Frame Synchronizer Module GPI Operation The GPI freeze control input can also be configured to operate in two ways by the “GPI MODE” control function (see Table 3 on page 15, Function Switch position D, Bank 1). When the toggle mode is selected the module will alternately switch between normal operation and freeze mode each time the remote input is pulled to ground. When in the hold position, the synchronizer will stay in the freeze mode only as long as the freeze control switch is closed.
Specifications Specifications Table 4.
8981FS Digital Frame Synchronizer Module Service The 8981FS modules make extensive use of surface-mount technology and programmed parts to achieve compact size and adherence to demanding technical specifications. For other than fuse replacement, circuit modules should not be serviced in the field. The 8981FS module has one fuse on the +12 V input. This fuse is installed in a socket so it can be easily replaced.
Functional Description Functional Description Refer to the block diagram in Figure 16 while reading the following functional description. Figure 16.
8981FS Digital Frame Synchronizer Module 27 MHz clock and the timing of a half-frame rate pulse feeding the read control logic. This clock and pulse is produced by the genlock and output timing control logic. Genlock and Output Timing The genlock and output timing control block can either lock its outputs to an analog color black reference input or to timing pulses from the write control logic. The analog video reference is used in the frame synchronizer operating mode.
Index A F apply button 19 audio delay control 6 auto-freeze 11, 13, 21 auto-freeze sensitivity 13 backplane 5 black output 11 block diagram 29 factory default 24 fault 7 features 2 fixed delay mode 11 format setup 15 frame 4, 27 frame status display 17 frame sync 10 freeze mode 12 freeze trigger 25 C G checkwords 12 color black 6 configuration 9, 15 connector 4 delay control 6 functions 6 input 6 control modes 19 controller module 4 gain 23 gain adjustment 12 GPI 12, 25 GUI 2, 17 GUI controls 19 B
M R manual freeze 12, 25 missing reference signal 20 mode display 20 module controller 4 installation 4 power supply 4 slots 4 module functions 18 module location 18 module name 18 momentary freeze 13 recall 14 recall settings 24 reference input 6 reference specifications 27 remote auto-freeze GPI 21 repair depot 28 reset 19 N N/A 19 network 17 networking 2 non-synchronous switches 13 non-volatile memory 14 NTSC reference 6 numeric displays 19 numeric entries 19 O offset 23 offset adjustment 12 operati
