Safran SecureSync 2400 User Manual page 551

Table 5-27:
ASCII RS-485 and Alarms/Relays Specifications
Inputs/Outputs
Signal Type and Connector
RS-485 Differential Output:
+1.65 V Typical Common Mode Output Voltage
2V min Differential Output Voltage Swing with 100 Ω load,
3.3 V Differential Output Voltage Swing, No Load, with ESD pro-
tection
Pin Assignments
Figure 5-63: RS-485 connector "J3"
Connector
Pin
1
2
3
4
SecureSync 2400 User Manual
ASCII RS-232 Output connector pin assignments
: (2) Two contact relay connections (NC, common, NO)
: Terminal block
Contacts Switch under max. load of 30 V
Contacts rated to switch 220 V
Breakdown voltage of 1000 V
Switch time 4ms, max.
Signal Direction
RS-485 TX+ Out
RS-485 TX- Out
GROUND N/A
Relay 1 NO Out
DC
between contacts
DC
Characteristics
0V to 3V differential, 120 Ω load
DC
0V to 3V differential, 120 Ω load
DC
GROUND
Normally Open 30 V , 2A max. switching
DC
power
APPENDIX
, 2A
DC
535