AMX AutoPatch Modula, Instruction Manual, Page: 144 / 191

RS-422 Boards
138 Modula Instruction Manual
Overview and System Setup
Overview
A Modula with RS-422 boards functions as an X/Y distribution matrix that also provides Y/X
distribution. Each RS-422 matrix is configured to route bi-directional signals (RS-422 or RS-232*)
between the X-Port connectors on the left and the Y-Port connectors on the right. The default
configuration is for X to Y Point-to-Point routing (see page 143) in which a controller signal is routed
through a single X-Port to a single Y-Port and a device status signal automatically returns from the
Y-Port back to the X-Port. For information on an advanced configuration option, see page 144.
* For information crucial to using this system for routing RS-232 signals, see the specifications
(page 137) and the pinout information (page 139).
System Setup
When installing an RS-422 system, the equipment attached to the Modula will be of two types,
controllers and devices. Controller and device equipment may be attached to either X-Ports or Y-Ports.
To simplify the explanations and examples, the information presented is for systems with all controller
equipment attached to the X-Port connectors and all device equipment attached to Y-Port connectors (the
default configuration). If your system is different, remember to adjust accordingly.
One possible setup for an RS-422 system with Sony
®
9-pin compatible components might include a
piece of equipment cabled to an RS-422 X-Port on the left side of the Modula, using a straight-through
cable. Additional equipment would be cabled to the RS-422 Y-Ports on the right side of the Modula,
using the same type of cable.
The example in FIG. 93 shows routing using the default configuration (X to Y Point-to-Point, see
page 143). A controller signal from an editing station is being routed to a tape deck and a device status
signal from the tape deck is being returned. The controller signal could be switched to route to the
camera instead, in which case the camera would return its device status signal.
Note: RS-422 systems can include any type of RS-422 equipment as long as the cable is wired
correctly (see page 140). For important RS-232 requirements, see the specifications (page 137) and
pinouts (page 139).
Sony
®
is a registered trademark of Sony Electronics, Inc.
FIG. 93
Equipment set up using a Modula with RS-422 boards
16
X-PORT
19
18
17
20
Y-PORT Y-PORT Y-PORT Y-PORT Y-PORT
Controller Signal
Device Status Signal
Modula
Editing Station
Camera
Tape Deck