User manual

KBU 64
User Manual
80-10100000-093–4
3.3.1 ALARM Port Pin Assignments
Pin assignments on the 25-way connector are:
Pin
no.
Circuit no Circuit name Source
1 GND Signal ground/chassis earth/ground
2 103 Transmit Data DTE
3 104 Receive Data DCE
4 105 Request To Send DTE
5 106 Clear To Send DCE
6 107 Data Set Ready DCE
7 102 Signal Ground
8 109 Data Carrier Detect DCE
9 --- Alarm Relay Contact ---
10 --- Alarm Relay Contact ---
11 --- Alarm Relay Contact ---
12 --- Alarm Relay Contact ---
13 --- Alarm Relay Contact ---
14-19 Not used
20 108/2 Data Terminal Ready DTE
21 --- Alarm Relay Contact ---
22 Not used
23 --- Alarm Relay Contact ---
24 --- Alarm Relay Contact ---
25 --- Alarm Relay Contact ---
See section 12 for details of Pin 1 nomination (signal ground or chassis
earth/ground), factory default setting is with no grounding links fitted.
3.3.2 ALARM Relays
Each channel energises an alarm relay when an alarm condition arises.
This has the same functionality as the alarm LEDs on the front panel i.e.
whenever an alarm LED is illuminated or flashing, the corresponding
alarm relay is energised.
Each relay has two contact sets, one set from each relay is directly
connected to the alarm port, the other set from each relay is connected
together to form a combined alarm output relating to both channels.