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MODEL S12

 

12 CHANNEL, 24 BIT, 100MPPS SCALER

 

FEATURES:

  • 12 CHANNELS, 24 BITS, IN A SINGLE WIDTH CAMAC MODULE
  • LOW PER CHANNEL COST
  • DC-100MPPS COUNTING RATES
  • FAST CLEAR AND INHIBIT
  • INTERRUPT CAPABILITY WITH IMPENDING OVERFLOW INDICATION
  • INDEPENDENT TEST MODE BY INHIBITING SIGNAL INPUTS
  • CASCADE CHANNELS FOR 48 BIT CAPACITY

 

APPLICATIONS:

  • TOTALIZING TO 100MPPS
  • NUCLEAR COUNTING
  • EVENT COUNTING
  • FREQUENCY MEASUREMENT

 

JOERGER ENTERPRISES, INC. MODEL S12 is a 12 channel, 100MPPS scaler packaged in a single width CAMAC module. The module uses standard IC’s which eliminates the stocking of special hybrids and reduces the possibility of module obsolescence. The inputs are D.C. coupled and can accept signals as narrow as 5nsec. at rates of 100MPPS. High speed CLEAR and INHIBIT are provided from the front panel and in addition, the module can be gated and reset from the dataway. A LAM structure is provided that, if enabled, will indicate an impending overflow of any channel. An interrupt flip-flop is triggered when a channel reaches a half full condition. A test function is also available that will inject signals into all the channels simultaneously. Testing can be performed in the presence of input signals by inhibiting the modules inputs. For applications requiring a capacity of greater than 24 bits the channels can be cascaded to provide 48 bit capacity. In this mode the overflow flip-flop would still be set when half the capacity has been used, in this case when bit 48 is first set.

 

SPECIFICATIONS: (for each channel)
SIGNAL INPUTS:
PULSE REPETITION RATE DC to 100MPPS
INPUT IMPEDANCE 50 ohms ± 5% DC coupled
SENSITIVITY -600mv
PULSE WIDTH 5nsec. minimum
PROTECTION ± 5 volt transients
CLEAR AND INHIBIT INPUTS
SENSITIVITY -500mv
IMPEDANCE 50 ohms ± 5% DC coupled

CAMAC COMMANDS
COMMAND

Q

 FUNCTION
0x

1

 Reads data from channel x** onto read lines 1-24
2x

1

 Reads data from channel x** onto read lines and resets all scaler channels with A11 (S2)
80-11

*

Test "Look at Me" flip-flop, Q=1 if set. Independent of LAM disable
90-11 Clears all channels at S2
240-11 Disables LAM response on L line
250-11 Increments all scalers
260-11 Enables LAM response
C (S2) Resets all channels and overflow flip-flop
Z (S2) or
POWER UP		 Resets all channels, overflow flip-flop and disables LAM response
I Inhibits all scalers
L An interrupt is generated if any scaler has reached half scale and the module is enabled. L is disabled when the module is addressed on its N line
X An X response is generated for all valid commands
Q A Q is generated in response to F0, F2 and F8 if the modules interrupt flip-flop has been set

** NOTE x=0-11 FOR CHANNELS 0-11 RESPECTIVELY

CONNECTORS: LEMO RA00250 or equivalent
TEMPERATURE RANGE: 0° C to 50° C
POWER REQUIREMENTS: +6v, 950ma
SIZE: #1 CAMAC module

 

JOERGER ENTERPRISES, INC 166 Laurel Road, East Northport, NY 11731 USA

1-631-757-6200 (Fax 1-631-757-6201) www.joergerinc.com

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copyright  1999-2007,  Joerger Enterprises, Inc.