ERL 8700/BUS, User Manual

Page: 85 / 166

D01908R02.12 B-PRO User Manual 8700 7-1
7 Installation
Physical Mounting
Standard 3U The relay is 3 rack units or 5.25 inches high and approximately 12.25 inches
deep. The standard relay is designed for a 19-inch rack. A complete mechani-
cal drawing is shown, for details see “Mechanical Drawings” in Appendix G.
To install the relay you need the following:
• 19 inch rack
• 4 - #10 screws
AC and DC Wiring
For details see “AC Schematic Drawing” in Appendix I and “DC Schematic
Drawing” in Appendix J.
Communication Wiring
EIA-232 The relay’s three serial ports (Ports 1, 2 and 3) are configured as EIA RS-232
Data Communications Equipment (DCE) devices with female DB9 connec-
tors. This allows them to be connected directly to a PC serial port with a stan-
dard straight-through male-to-female serial cable. For pin-out details see
“Communication Port Details” on page 2-8.
An adapter is available for connecting an external modem to Port 2. For details,
see “Modem Link - External” on page 2-3.
RJ-45 The relay may have an optional internal modem or an optional internal
10BaseT Ethernet port. Connection to either of these is via the relay’s Port 5
RJ-45 receptacle. Labeling above the port will indicate which option, if any,
has been installed.
IRIG-B Wiring The relay accepts both modulated and unmodulated IRIG-B standard time sig-
nals with or without the IEEE 1344 extensions.The IRIG-B connector on the
back of the relay is BNC type.
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