Specifications

October 8, 2003 Networking Alpha Signs (9700-0112C)
54 Appendix
Signs with a terminal block
A terminal block is a group of one or more individual terminals consisting of electrical connectors. Many
functions can be wired to the terminal block, such as power distribution or grounding. On some Alpha signs, serial
connections are directly wired to a terminal block as either RS232 or RS485, so there is no jumper to be set. Each
sign’s installation manual provides detailed instructions.
“Appendix E—Serial and power connections” on page 55 provides information on which signs have terminal
blocks.
Terminals
To make a connection, insert a wire under the
appropriate screw and then tighten the screw.