Network Configurations-Adding Serial Clocks To An Alpha Network - Adaptive Micro Systems alpha User Manual

ALPHA Serial Clock Manual
Network configurations—Adding serial clocks to an Alpha network
Alpha serial clocks can be connected together with each other or in a mix of
Alpha signs. Also, like an Alpha sign, an Alpha serial clock must be
terminated when it is the last device on a network.
In a network, one clock (or a PC attached to the network) is used to
synchronize all the other clocks to the same time. In a network composed of
all Alpha serial clocks, one clock must be set to master mode and the other
clocks set to slave mode.
In this example of clocks on an Ethernet network, all clocks must be set to slave mode.
Item Part #
A 1088-8621
* B 1088-1114B
C —
* To provide power to the Ethernet Adapter II, the J5 Jumper must be moved from positions 1 and 2 to positions 2
and 3. To change the location of the J5 jumper go to page 16 for details.
10
Table 1: Networking Alpha serial clocks
(Example 1 — Clocks on an Ethernet network)
To LEFT
phone jack
To LEFT
phone jack
To LEFT
phone jack
To LEFT
phone jack
3 foot serial cable, RJ-11 to RJ-11
Ethernet Adapter II (5VDC power is required from the clock)
TCP/IP network cable (10/100 BASE-T)
B
A
B
A
Description
C