Adaptive Micro Systems alpha User Manual page 12

ALPHA Serial Clock Manual
In a network with a PC that is connected to Alpha clocks and Alpha signs, all
the clocks must be set to slave mode.
Unlike the previous all-clock network, in this example, a PC is connected to the network. All the clocks on the network
must be set to slave mode. Also, the last clock on the network must be terminated.
A
Alpha
PC running
AlphaNET plus™ software
Item Part #
A 1088-9107
B —
1088-8624
C
1088-8636
D 4331-0602
E 1088-8000
F 1088-1111
G 1088-8634
H —
12
Table 3: Networking Alpha serial clocks
(Example 3 — A network of clocks attached to a PC)
®
serial clocks
H
To one of the
PC's COM
(RS232) ports
End-of-line (EOL) terminator. (An EOL must be plugged into the left—as you face the
back of the clock—RJ11 phone jack.)
Ferrite (ferrite end towards sign)
8 foot, 4-conductor RS485 cable
1 foot, 4-conductor RS485 cable
Modular Network Adapter
RS485 cable
Converter Box III
10 foot, 9 pin-to-9 pin, type "A9" RS232 cable
serial port DB25-to-DB9 RS232 adapter (may be required by your computer)
B
To either
phone jack
F
G
Description
C
D
To RS485
connector
block
Set switch to Terminated.
E