Summary of Contents for Telecast Python II
- Page 1 Python II™ Multichannel SDI/HD-SDI Video Transport System Instruction Manual Telecast Fiber Systems, Inc. 102 Grove Street Worcester, MA 01605 Tel: 508-754-4858 Fax: 508-752-1520 6/07 www.telecast-fiber.com...
- Page 2 Python II Transceiver, front and rear views Software version Number:...
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Page 3: Table Of Contents
= no link indication Figure 6. Good link but no SDI Data Figure 7. Good link AND good SDI Data Figure 8. Python II with Band-Splitter Option Figure 9. Example of Python II flexibility List of Tables Table 1. Python II Varieties Table 2. -
Page 4: Laser Safety
Do not power up the unit when no fiber is attached to the fiber port. There are no user adjustments inside the Python II. Do not attempt any type of service to this instrument other than any as instructed this manual. Refer all servicing to Telecast Fiber Systems, Inc. -
Page 5: Introduction
Coax is equalized on both the inputs and outputs at 1.5 Gbps and the outputted data stream is not re-clocked. Python II’s are housed in a standard 19-inch electronics rack and are 1 RU high. This manual covers the following part numbers:... -
Page 6: Setup
Line Power Any power supply used with the Python II must provide a minimum of 1.5 amps, continuous, at 12 to 24 VDC. Two 4-pin DC power inputs are provided for redundancy. -
Page 7: Optical Connections
Figure 1: Rear Panel Connections for non-CWDM and CWDM Versions Optical Connectors All optical connectors are on the rear panel, which is nearly identical for the TX, TR and RX units; see Figure 2. The rear panel has 1,2, 8 or 16 ST type connectors, dependent upon version. Front Panel Connections/Indicators The front panels of the RX and TX are shown on the next page in Figure 3. -
Page 8: Tranmitters
TX Front Panel Indicators Power The POWER LED illuminates RED when 12-18 VDC mains power is applied at either of the rear 4-pin inputs. The LED changes to GREEN when the unit is turned on. Each BNC input has a single LED that indicates the following: Signal No Data present GREEN... -
Page 9: Figure 5. N/A = No Link Indication
As you scroll through the channels, you will see one of four conditions: 1. If there is no fiber link for a given channel, n/a will be displayed Figure 5 : n/a indicates no optical link 2. If there is an optical link but no SDI data present, the optical power reading will change between a high and low value, such as -7 and -30. -
Page 10: Fiber Optic Cable Runs
4. After the last channel is displayed, the ambient temperature inside the frame will be indicated in degrees Celsius. Fiber Optic Cable Runs The optical output from each TX is generated by an infrared laser diode that is coupled to the fiber. User connections are made at the bulkhead ST type connectors on the rear panel;... -
Page 11: Powering Up
This LED turns GREEN when the switch is moved to the ON position. Standard Model Operation For the standard (non-CWDM) Python II’s, each SDI channel BNC on the front panel corresponds with an ST on the back panel. No electrical or optical multiplexing is taking place and patching the fiber is simply a matter of matching the fiber output on the transmitter to the proper fiber input on the receiver. -
Page 12: Figure 8. Python Ii With Band-Splitter Option
Figure 8: Python II with Band-Splitter Option for 16 Signals on a Single Fiber... -
Page 13: System Examples
System Examples The Python II platform can be used for point-to-point links or for multi-point distribution. With Optical splitting (optional), a single TX unit can send to multiple RX units. When combined with other Telecast modules like the Rattler, Viper II 5292, 5259 and 5270, and Viper I 292 and 259 many different signal topologies are possible. -
Page 14: Maintenance
System Maintenance Repair For assistance with your Python II system, contact Telecast Fiber Systems, Inc. at 508-754-4858. To return a unit for repair, you must obtain a return material authorization (RMA) number from Telecast service. Accessory List The following accessories are available from Telecast: •... -
Page 15: Specifications
Operating Characteristics Optical Wavelength: 1300 nm or 1550 nm Optical Window CWDM wavelengths (optional Fiber: Single mode or Multi mode Optical Data Rate: Up to 1.5 Gb/sec Optical Source Laser diode (-7 dBM) or DFB (0 dBm) CWDM Optical Detector Link margin: 22 db for HD rates, 30 db for 270 rates Distance... -
Page 16: Warranty
Distributor’s customer or Distributor must notify Telecast of the defect prior to the expiration of the applicable warranty period and obtain a Return Authorization Number from Telecast. In no event may products be returned to Telecast or to Distributor for warranty service without having obtained from Telecast a Return Authorization Number.
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