Teledyne 3220 - Multi-channel oxygen monitor system - Manual (Page 34)

3 Installation Model 3220
Teledyne Analytical Instruments 20
3.6.2 Control Unit Jumper Settings
The Control Unit may be configured by changing the installation of
the jumpers on the PCB. See the following sections for complete
jumper installation information. The default jumper installation is
shown in the table below.
Table 3-1: Control Unit Jumper Configuration
Jumper Installation Function
JP1 Pins 1 & 2 Fail-safe Failure Alarm
JP2 Pins 1 & 2 Fail-safe Alarm 2
JP3 Pins 1 & 2 Fail-safe Alarm 1
JP4 Pins 1 & 2 Normally closed ext.
aud. Alarm
JP5 Pins 1 & 2 Fail-safe ext. aud.
Alarm
JP6 Pins 1 & 2 Ext. aud. contact
closures output
JP7 Pins 1 & 2 Ext. aud. contact
closures output
JP8 Thru JP16 OFF RS-485 connections
not routed
JP17 ON Internal aud. Alarm
enabled
JP18 & JP19 ON Ground planes
connected
Three alarms (Alarm 1, Alarm 2, and Fail) may be configured for
either fail-safe (default) or non fail-safe operation according to the table
below:
Table 3-2: Fail-safe/Non Fail-safe Alarm Configuration
Alarm Jumper Failsafe Non-failsafe
Alarm 1 JP3 Pins 1 & 2 Pins 2 & 3
Alarm 2 JP2 Pins 1 & 2 Pins 2 & 3
Failure JP1 Pins 1 & 2 Pins 2 & 3