User manual

ALPHA Serial Clock Manual

Time zone adjust feature

Some Alpha serial clocks have a time zone adjust feature. This lets you

display the time in different time zones on your networked clocks. For

example, you could network four clocks in an office and use them to show

the time across the continental United States. Clocks with this feature do not

have the ability to set a serial address. This feature may not be available on

all Alpha serial clocks.

To set the time zone adjust feature:

1. Decide which time zone(s) you are going to display. Figure out how

many hours ahead (+) or behind (-) the time zones are from your current

time. This is the number of offset hours. See Table 4: DIP Switch

Settings on page 14 to determine the correct switch settings for switches

numbered 1-4 and 7. For example, if you are in the Central Time Zone

and you wish to display the time in the Eastern Time Zone, the offset

hours would be “+1”. The switch settings would be:

DIP 1 = ON

DIP 2 = OFF

DIP 3 = OFF

DIP 4 = OFF

DIP 7 = OFF

2. Unplug the adapter from the wall outlet.

3. Use a Phillips screwdriver to remove the back plate from the serial

clock.

4. Locate the DIP switches numbered 1-4 and 7. (See

Figure 3: DIP Switches 1-4 and 7).

5. Use the tip of a pen or small screwdriver to turn the

DIP switches on or off as directed in Table 4 on

page 14.

6. Reattach the back plate and plug the adapter back

into the wall outlet.

NOTE: If you have a network of only clocks, one clock

must be set to master mode. All the other clocks on the network

must be set to slave mode. If your network of clocks are connected

to a PC, all clocks on the network must be set to slave mode. See

Setting the #5 DIP switch on page 17 for more information.

Figure 3: DIP Switches

1-4 and 7