Installation Manual

37
The Sapling Company, Inc.
670 Louis Drive
Warminster, PA 18974
USA
P. (+1) 215.322.6063
F. (+1) 215.322.8498
www.sapling-inc.com
Alternative Inputs - Clock-Side - RS485 (3200/3300 Only)
Inputs - Clock-Side - User Inputs
RS485
In instances where a 3200 or 3300 wireless digital clock is being integrated
with an existing clock system, or instances where the clock is installed
beyond the signal range of other wireless time transmitters, it is possible to
configure the clock to accept time data from a wired RS485 system.
The port block on the bottom left side of the circuit board will be called J7.
Refer to the diagram for details. For J7, the ports in the block are listed as
1-4, starting with port 1 on the left and port 4 on the right. Inputs go into
J7 ports 1 and 2.
For information on the rest of the RS485 system, see the page “ Alternative
Inputs - System Side -RS485”
J7
1
4
User Inputs
Use a dry contact closure between any of the two lines shown above to activate one of the numbered user
inputs. This input is a dry contact closure, which means that the user should not be providing external
power on either of the lines leading from the relay to the clock. The dry contact closure only needs
to complete the circuit when activated, and can be a simple switch or button.
To configure what a given input does to the clock when activated, refer to the section of this manual
labeled “sbdconfig - Inputs.”
J2-
1
2
3
4
5
6
7 8
9
Input 1
(Dry Contact
Closure)
Input 2
(Dry Contact
Closure)
Input 3
(Dry Contact
Closure)
Input 4
(Dry Contact
Closure)
Relay
N.O.
Relay
N.O.
COM
COM
N.O.
COM
N.O.
COM
Relay
Relay