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1 Output High
2 Sense High
3 Sense Low
4 Output Low
Table 3-1: Output Terminal connections.
California Instruments 35
User Manual Compact i/iX Series
3.7 Connectors - Rear Panel
A number of connectors are located along the top rear panel of the unit. A summary of available
connectors is provided in the table below.
Connector Ref.
i / iX Series
AC Input
(INPUT)
Function Connects To
L – AC in
N – AC in
G – Chassis Gnd
TB2 Primary AC Power Input 115 VAC or 230 VAC nominal
AC Output
(OUTPUT)
Function Connects To
1 - Output High
2 - Sense High
3 - Sense Low
4 - Output Low
TB1 AC output User Load
i Series
Remote Control Function Table
USB J34 USB Control Interface
IEEE-488 J33 GPIB Control Interface See IEEE-488 standard for pin out.
Option –GPIB.
System Interface Function Table
Master J30 Connects to Master DB15, MALE
Auxiliary J31 Connects to Auxiliary DB15, FEMALE
iX Series
Remote Control Function Table
USB J34 USB Control Interface
IEEE-488 J33 GPIB Control Interface See IEEE-488 standard for pin out.
LAN J35 Ethernet Interface Option -LAN.
System Interface Function Table
Master J30 Connects to Master DB15, MALE
Auxiliary J31 Connects to Auxiliary DB15, FEMALE
i / iX Series
Other Function Table
DB9 J32 Aux I/O Table 3-5
BNC Connectors J28 Clock Table 3-6 -LKM / -LKS option
J29 Lock Table 3-6
Table 3-2: Rear Panel Connectors
California Instruments 36
User Manual Compact i/iX Series
3.7.1 AC Input Connector – INPUT – TB2
See section3.5 for details on connecting AC input power. Connector type is Beau (Molex), 73203.
Terminal Designator Connection Description
1 Line AC Line
2 Neutral AC Neutral
3 GND Chassis Ground
Table 3-3: AC Line Input Terminal block.
3.7.2 Output Terminal Block – OUTPUT – TB1
Each chassis has a single AC output terminal block. The output terminal block must be covered using
the supplied AC Output safety cover. The terminal blocks are large enough to accommodate required
wire gauge sizes. The terminal block is located in the upper left corner on the rear panel of the unit.
(Looking from the back). Connector type is Magnum, A307104R50. The use of spade or ring lugs is
recommended.
Terminal Designator Connection Description
1 HI Output Output Load High
2 HI Sense Sense High
3 LO Sense Sense Low
4 LO Output Output Load Low
Table 3-4: Output Terminal connections.
3.7.3 Auxiliary I/O Connector – J32
A DB9, 9-pin I/O connector is located on the rear panel. Table 3-5 shows connections by pin number.
Pin Signal Description
1 ACOM Analog Common
2 RPV Remote Programming Voltage (Option -RPV)
3 RPF Remote Programming Frequency (Option –RPF)
4 /INH Remote Inhibit. (TTL input)
5 TRIG IN Trigger Input (TTL input)
6 FSTB Function Strobe or Trigger Output (TTL output)
7 DFI Discrete Fault Indicator output. Isolated Open
Collector. Can be used to signal external devices
when a fault condition is detected.
8 DCOM Digital Common
9 n/a Not used.
Table 3-5: DB9 I/O Connector
California Instruments 37
User Manual Compact i/iX Series
3.7.4 BNC Connectors (-LKM / -LKS options) – J28/J29
BNC connectors. Functions are called out on rear panel decal. Table 3-6 shows connections for the
optional -LKM and -LKS clock and lock mode. This option is available on iX models. Refer to section
3.10 for more details.
BNC Ref. Description
CLOCK J28 Clock Option (TTL output on Master / TTL input on Auxiliary)
LOCK J29 Lock Option (TTL output on Master / TTL input on Auxiliary)
Table 3-6: BNC Connectors
3.7.5 System Interface Connectors – MASTER (J30) and AUXILIARY (J31)
WARNING: The system interface connectors are for use with California Instruments
supplied cables, and only between California Instruments equipment.
A set of two System Interface connectors is located on the rear panel of each iX Series chassis. The
system interface is used to connect two power sources in a Master/Auxiliary configuration to create a
1501iX/2, 1501i/2, 3001iX/2 or 3001i/2 AC power source configuration. A suitable System Interface
cable MUST be used to connect both chassis as shown in Figure 3-7.
Note that no user accessible signals are provided on the System Interface connections and they
should only be used for their intended purpose.
California Instruments 38
User Manual Compact i/iX Series
3.7.6 USB Interface – J34
A standard USB Series B device connector is located on the rear panel for remote control. A standard
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