Honeywell Enraf 977 Instruction Manual page 11

To select the 15 seconds time-out:
For TSI versions with a solder strap:
• Remove the cover from the 977 TSI by loosening the four screws at the corner.
• Remove the connector CN1 (wiring can be left connected)
• Loosen the two screws marked "A" in figure 3.2.
• Lift TSI printed circuit board assembly from the housing, turn over to the right hand side and loosen the
PCB ground connection in the housing.
• Take the TSI printed circuit board assembly to a workshop or other safe area for soldering.
• Refer to figure 3.3. Locate the four straps S4 at the solder side of the main PCB (at the top). Short the first
strap of S4 by soldering the left pad.
• Return to TSI housing. Connect the PCB ground connection, place the PCB assembly in the housing and
secure it with the two screws "A".
• Place connector CN1 and close the cover.
For TSI versions with a strap block:
• Remove the cover from the 977 TSI by loosening the four screws at the corner.
• Remove the connector CN1 (wiring can be left connected)
• Loosen the two screws marked "A" in figure 3.2.
• Lift TSI printed circuit board assembly from the housing, and locate at the top of the printed circuit board
strap block S4 between the connector for the LCD flat cable and the connector for the optional
keyboard.
• Remove the jumper from the left position and place it to the most right position as indicated in figure 3.4
• Position the circuit board assembly back into the TSI housing and secure it with the two screws "A".
• Place connector CN1 and close the cover.
communication time out
Instruction manual 977 Tank Side Indicator
Commissioning
Figure 3.4 Strap setting for
Page 9