The SVS RS-422 port routing switchers are used with VS/DE, Sierra PRO, Tahoe, Shasta, Yosemite, and Sequoia routing and control systems. The 16-port 1RU (1.75") router features m/s tracking ports and is controlled as a separate level. The 64-port 4RU frame can also be linked to one of these systems, or it can stand alone with its own serial control module (504001).

RS-422 Port Data Frames
The RS-422 Series is a modular design, based on increments of 16 ports. Two frame sizes are available: 1RU 16 port, ideally suited to small systems, and 4RU 64 port frame for mid-size systems and for very large installations. By ordering only the quantity of 16 port I/O modules needed in any size system between 16 to 64 ports, it's easy to configure and very cost effective. These switchers are "port" rather than "XY" designs. A 32 x 32 XY RS-422 router would have a total of 64 RS-422 connectors. 32 of these would be designated to be Sources or Machines and the other 32 would be outputs or controller connections. A 64 port system has the same total number of connectors, but unlike the XY system any connector, or "port," can be connected to any other connector. In the case of tape machines this feature allows a machine to control another tape machine which is set to remote. A 64 port system can be thought of as a 32x32 XY. It can also be used as a 48x16 or a 56x8, etc. The 1RU RS-422 16 port system is designed to be used as a "level" under another processor. The 4RU RS-422 64 port system consists of four 16 port I/O modules and a control processor. The control processor is based on the same design used in our Tahoe Family routing switchers. The controller has an RS-485 control panel party line bus, an RS-232 personality port, an RS-232/RS-422 host port and a parallel control connector for easy integration with other Sierra Video Systems video and audio routing switchers which have parallel control output connectors.

Mapping is one special feature of the port system's control. The RS-422 I/O ports are assigned to individual inputs and outputs of the corresponding video router by means of the personality port. This allows the RS-422 level of a large routing switcher to be configured with only as many RS-422 ports, as your system needs: you don't need an RS-422 matrix as large as the video levels. In the 64 port system each of the 16 port I/O modules has a 16x64 / 64x16 switching matrix, eliminating the need for any additional switching modules.

16 Port RS-422 Routing Switcher
16 Port RS-422 Machine Control 1RU Switcher
1 - 1RU 16 Port Switcher	805054
with m/s tracking ports. For use only as a "level" under a Tahoe or Yosemite process. This frame can not be used in a "stand alone" mode.
64 Port RS-422 Routing Switcher
70
64 Port RS-422 Machine Control 1RU Switcher
1 - 1RU 64 Port Switcher	805064
4 - 16 Port I/O Module with Port Tracking	505057
1 - Optional Serial Control Module for Stand alone operation	504011
(Order 16 Port I/O modules separately as needed)
Options for 16 & 64 Port RS-422 Systems
Redundant power supply, 230 VAC ± 10%	PW22002

RS-422 Machine Control Router Specifications
Frames
I/O connector type	one 9 pin female D per "port"
Data rate	300 bps through 250 kbps
Nominal data rate	8.4 Kbps
Mechanical / Electrical
805054
Power input	115 VAC / 60 Hz or 230 VAC / 50-60 Hz
Power consumption	20 VA
Size	1RU x 10" deep
805064
Power input	115 VAC / 60 Hz or 230 VAC / 50-60 Hz
Power consumption	20 VA
Size	1RU x 10" deep