Grass Valley JEP-100 v.1.2.0 - Manual (Page 25)

JEP-100 — Installation and Operating Manual 23
Hardware Installation - Jupiter System
VDE EMI/RFI Modifications to Serial Data Cables
User-supplied serial data cables for VDE installations require a ferrite core
over each end of the cable, adjacent to the connector.
Figure 6. Serial data cable VDE modifications.
Power Surge Protection using JUP-485-SUP Module
Voltage surges may occur in mobile van environments or other applications
involving long serial cable runs or cases where there is a possibility of a
power spike appearing between the Jupiter CM-4000 System Controller
and a Jupiter control panel. Voltage surges in the 25-volt range have been
known to damage the RS-422/485 driver ICs used in the CM controller. The
JUP-485-SUP module, available as an option, connects to the CM serial port
and uses an internal diode array to limit the voltage on each of the RS-485
conductors to approximately eight volts. For more information, refer to
Field Modification Note 0750790xx or contact Grass Valley Technical Sup-
port.
Joystick Override
This function applies only to the current JEP-100 model, which has a 15-pin
D female connector on the rear panel to provide a total of 14 joystick control
lines plus ground. For more information, see
page 59 .
Type 43 material
0.250 inch (6.35 mm) inside diameter
0.95 inch (24.13 mm) length (or longer)
Type 43 material sources
Fair Rite, part no. 2643480002
Fair Rite Products Corp., P .O. Box J, Commercial
Row, Wallkill, NY 12589, USA; Tel. (914) 895 2055.
Chomerics, part no. 83 10 A636 1000
Chomerics Inc., 77 Dragon Ct., Woburn, MA 01888
USA; Tel. (617) 935 4850.
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