Sirius 800 www.snellgroup.com Power Supply and Fan Maintenance
Issue 1 Rev 1 Page 26 © 2014 Snell Limited
4.4 Fan Replacement
4.4.1 Frame Configuration Identification
There are three possible configurations for each Sirius 800 router model in the field. These
configurations are listed in Table 4. Each configuration enables the router to work with
particular input/output modules and controllers. Each configuration also uses different
combinations of front and rear fans.
Table 4. can be used to check if a router frame has been modified and identify which
configuration it is. This can then be used in conjunction with the other tables in this section to
see which fans are fitted to the router.
Frame
Configuration
Mark 1 Frame
Configuration
Mark 2 Frame
Configuration
Mark 3 Frame
Configuration
Description
Standard Unmodified
Frame
Original Modified Frame
Standard & Modified
Blue Fan Frame
Supported by
Frame
Configuration
Video Routing Only
(no Video or Audio
Processing)
Video & Audio Routing,
Audio Processing
(no Video Processing)
Video & Audio Routing,
Video & Audio
Processing
Router
Controller(s)
Nucleus 2450 Nucleus2 2463 Nucleus2 2463
Fan-Out
Controller(s)
Sirius 830: 2453
Sirius 840/850: 2452
Sirius 830: 2455
Sirius 840/850: 2456
Sirius 830: 2457
(blue boards)
Sirius 840/850: 2458
(blue boards)
Fans
Silver fan casings (front
and rear) with no letters
stamped on them
Silver fan casings, rear
fan casings stamped
with “HF”
Front and rear fans with
blue fan casings
Table 4. Router Frame Configuration
• DO NOT fit Blue Control/Fan Interface modules (2457/2458) in a router
equipped with fans with Silver casings as this will damage the router and the
router will stop working.
• DO NOT fit Green Control/Fan Interface modules (2455/2456/2452/2453) in a
router equipped with fans with Blue casings as this will damage the router
and the router will stop working.
To Next Page
Loading...