California Instruments FCS Series II, User Manual

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User Manual – Rev B FCS Series II
3.6.4 Auxiliary I/O Connector
A high density D style, 15-pin I/O connector is located on the upper rear panel. Table 3-8 shows
connections by pin number.
Pin Signal Description
1 ACOM Analog Common
2 RPVA Remote Programming Voltage phase A (Option -
RPV) or Ext Input phase A (Option –EXT)
3 RPF Remote Programming Frequency (Option –RPF)
4 /INH Remote Inhibit. (TTL input)
5 TRIG IN Trigger Input (TTL input) If external sync option
(–EXS) is installed, this input is reassigned as Ext
Sync.
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 ommon C
9 RPVB Remote Programming Voltage phase B (Option -
R
t phase B (O PV) or Ext Inpu ption –EXT)
10 R oltag
R (O
RPVC emote Programming V e phase C (Option -
PV) or Ext Input phase C ption –EXT)
11-15 Reserved Do not use.
Table 3-8: DB15 Auxi
3.6.5 BNC Connectors (-LKM / -LKS options)
liary I/O Connector
BNC necto ut on 3-9
the op nal -L lock mo fo
con rs. Functions are called o rear panel decal. Table
de. Refer to
shows connections for
r more deta tio KM and -LKS clock and section 3.9 ils.
BNC REF Description
CLOCK J1 TL input on Auxiliary) Clock Option (TTL output on Master / T
LOCK J2 Lock Option (TTL output on Master / TTL input on Auxiliary)
Table 3-9: BNC Connectors
California Instruments 38