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DAC-PAL-M  

 

 

 

Rev. 0

 

DATE: 17 November 2005 

 

 

 

 

 

                                                   

Network Electronics ASA, P.O.Box 1020, N-3204 Sandefjord, Norway. Tel.: +47 33 48 99 99 – Fax: +47 33 48 99 98 

 

E-mail: support@network-electronics.com – Web: http://www.network-electronics.com/ 

 

 
Technical specifications are subject to be changed without notice. 

 

 

10 

6. Interface with GYDA and RS-422 command set 

All commands follow the flashlink protocol and can be used for direct control access to the module.  The 
control system can either be a GYDA or a third-party control system with integrated flashlink protocol. 
The module can also be manually controlled with a VT100 compatible terminal program. 
  
The protocol can be found on our web page; http://www.network-electronics.com 
 

6.1 DAC-PAL-M Command table 

 

Command 

Response  Comment 

Yes 

The “Hello” command. 

info 

Yes 

Gives back the card state. 

Pedestal on 

“OK” 

Pedestal is present. 

Pedestal off 

“OK” 

Pedestal is not present. 

eget [0xHH] 

Yes 

Get a value from a numbered eeprom register. 

eset [0xHH] [0xHH]  “OK” 

Set a value to a numbered eeprom register. 

get [0xHH] 

Yes 

Get a value from a numbered register. 

set [0xHH] [0xHH]  “OK” 

Set a value to a numbered register. 

 

Table 2 - All commands available to the user 

6.2 The “?” command 

According to the Flashlink-protocol, no card can use the RS422-bus before it has been activated with the 
“?” (hello) command. The response from DAC-PAL-M will be: 

xxxxDAC-PAL-M\ 
PIC sw rev X.X.X\ 
Protocol ver X.X 

 

Here xxxx

 denotes the source and destination rack and slot coordinates, while 

X

 represents a version 

number. As of primo November 2004, these revisions would be:  

xxxxDAC-PAL-M\ 
PIC sw rev 1.0.0\ 
Protocol ver 1.0 

 

6.3 The “info” command 

This command report the entire state of the card. An example: 

xxxxLocked 50Hz\ 
Pedestal on 

 

Status of 

Status string 

Comment 

Summary of Contents for DAC-PAL-M

Page 1: ...tp www network electronics com Technical specifications are subject to be changed without notice 1 USER MANUAL DAC PAL M SDI Distribution Amplifier with Composite Analogue Monitoring Output Network Electronics ASA Thorøya N 3204 Sandefjord Norway Phone 47 33 48 99 99 Fax 47 33 48 99 98 e mail support network electronics com www network electronics com ...

Page 2: ...nics com Web http www network electronics com Technical specifications are subject to be changed without notice 2 Revision history The latest version is always available in pdf format on our web site http www network electronics com Current revision of this document is the uppermost in the table below Revision Replaces Date Change Description 0 17 11 05 First release ...

Page 3: ...tions 5 3 Connector module 6 3 1 Correspondence of connectors and signals 6 3 2 Mounting the connector module 6 4 Configuration and Setup 7 5 Module status 8 5 1 GPI ALARM Module Status Outputs 8 5 2 Front Panel Status Monitoring 9 6 Interface with GYDA and RS 422 command set 10 6 1 DAC PAL M Command table 10 6 2 The command 10 6 3 The info command 10 6 4 Pedestal command 11 6 5 get set eget and e...

Page 4: ... General The flashlink DAC PAL M is a high quality SD distribution amplifier with 3 x SD digital and 3 x composite analogue outputs The SDI outputs are compliant to SMPTE 259M and the composite analogue outputs are PAL PAL M compatible DAC PAL M user monitoring can be performed via the GYDA control interface The DAC PAL M is designed for all distribution and monitoring purposes in studio duplicati...

Page 5: ...isation Automatic Impedance 75 ohm Return loss 15dB 270MHz Signal level nom 800mV Connector BNC Digital Serial Output Signal 4 2 2 SMPTE 259M C 270Mbps reclocked Connector BNC Number of outputs 3 Impedance 75 ohm Return loss 15dB 270MHz Jitter max 0 2UI Peak to peak signal level 0 8V 0 1V Analogue Output Connector BNC Impedance 75 ohm Formats Composite video PAL 625 50 or PAL M 525 60 Signal level...

Page 6: ...rear of the sub rack The module is shown in Figure 2 Figure 2 DAC MON C1 connector module 3 1 Correspondence of connectors and signals The DAC MON C1 connector module has 7 BNC s CVBS Analogue output CVBS CVBS Analogue output CVBS CVBS Analogue output CVBS SDI IN Digital SDI input SDI OUT Digital SDI output SDI OUT Digital SDI output SDI OUT Digital SDI output 3 2 Mounting the connector module The...

Page 7: ...support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice 7 4 Configuration and Setup Figure 3 DAC PAL M simplified silkscreen The DAC PAL M card has no direct user settings available with DIP switches Refer to the GYDA Interface for possible user settings with the card ...

Page 8: ... The functions of the LED s are described on the next page The GYDA controller is described in a separate user manual This manual is available on our web site http www network electronics com 5 1 GPI ALARM Module Status Outputs These outputs can be used for wiring up alarms for third party control systems The GPI outputs are open collector outputs sinking to ground when an alarm is triggered The G...

Page 9: ...dule The LED s are visible through the front panel as shown in Figure 5 below Text not printed on the front panel Figure 5 Front panel indicator for DAC PAL M The DAC PAL M has 3 LED s each showing status information The position of the different LED s is shown in Figure 5 Diode state Red LED Yellow LED Green LED No light Card State Module is faulty Module is OK Module power is OK Module has no po...

Page 10: ...e Hello command info Yes Gives back the card state Pedestal on OK Pedestal is present Pedestal off OK Pedestal is not present eget 0xHH Yes Get a value from a numbered eeprom register eset 0xHH 0xHH OK Set a value to a numbered eeprom register get 0xHH Yes Get a value from a numbered register set 0xHH 0xHH OK Set a value to a numbered register Table 2 All commands available to the user 6 2 The com...

Page 11: ...d Pedestal on Pedestal is present when locked to 525 Pedestal Pedestal off Pedestal is not present when locked to 525 Table 3 The info command broken up in components The info command is composed by many minor lines fully specified in Table 3 In general when a condition is normal it is not reported For instance pedestal is reported when locked to 50Hz even tough the setting has no effect on the vi...

Page 12: ...ity it thereby complies with the Electromagnetic Compatibility Directive 89 336 EEC General environmental requirements for Network flashlink equipment 1 The equipment will meet the guaranteed performance specification under the following environmental conditions Operating room temperature range 0 C to 40 C Operating relative humidity range up to 90 non condensing 2 The equipment will operate witho...

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