Bio-Rad BioFrac™ Fraction Collector - Manual (Page 95)

15-Pin D Connector
User Guide | 87
Table 23. 15-Pin D connector output signals
Pin # Output Signals Type Active Wire Color Description
4 READY Level Low Green Indicates that the fraction
collector diverter valve is
connected and functioning
properly.
9
10
START REMOTE
DEVICE
Relay Closed Green/Black
Orange/Black
Relay used for starting a
remote device such as a
pump. Relay is closed
when Run is pressed and
opened when Stop is
pressed. Active in Local
mode.
11 EVENT MARK Pulse Low Blue/Black Sends a negative pulse
(200 ms) for each fraction
advance. If the delay
function is being used, the
drophead advance will be
separated from the event
mark by the delay time,
volume, or drops.
15 SIGNAL
GROUND
Blue/White Signal ground.
All input and output pins, except the relay terminals, are TTL compatible. All input pins are with
10 k
 pull-up. The relay pins are used to control low-voltage DC contact-closure type devices,
such as 12 V, 10 mA.
Caution: Do not apply 110 VAC or 220 VAC directly to the relay terminal pins.