Numbers of installed units:
DTL: 12
CCL: 24
SRF: 64 (assumes that all cryomodules are installed - not true as of Jan/01)
HEBT: 55
Ring: 87
RTBT: 43

Minimum requirements:
Operating modes: Commissioning;
Studies, troubleshooting;
Operational (nominal).

Beam current amplitude: 15 to 60 mA Chopped and unchopped (Linac).

Beam current width: Sub-µsec (partial mini-pulse) to 1 msec macro-pulse.
Macro-pulse chopped at ring revolution rate of ~1.07 MHz. Mini-pulse width ~ 695 nsec.

Pulse repetition rate: 1 - 60 pps

Electronics Bandwidth: DC - 50 kHz.

Electronics Gain: Programmable by channel, ____ levels during macro-pulse

Upper end loss limit: Linear response for 0.5 % beam fast loss at single point

Lower end loss limit: 10% resolution of 1 W/m loss at 1 Hz bandwidth

Pulse Identification: Date/time stamp sufficient to specify macro-pulse.

Timing: Timing settable within macro-pulse with sub µsec precision.

Update rate: 1 Hz - Long-term, low level loss (each detector)
1 Hz - Standard losses (each detector, total loss all macro-pulses)
6 Hz - Detailed losses (10 detectors total, 100 µsec resolution)

Beam Inhibit Capabilities:
Fast Loss: 10 µsec Detect-to-Beam Inhibit time
Programmable threshold, each detector, ___ level changes/macro-pulse
Each detector maskable (eliminate bad channels, permit studies resulting in higher than normal losses)
Single output line/analog crate

Long-term, low level loss: "Soft" alarm through network or
Programmable threshold, each detector,
Each detector maskable (eliminate bad channels, permit studies resulting in higher than normal losses)
Single output line/analog crate

Local Data Storage: "Flight-Recorder Mode, 60 (1-second) records of "Detailed Losses" for each detector. Available for readback on beam abort.

In-Situ System check: On-line check of all detectors, connections and electronics by cycling HV Off/On.
Identification: Each BLM detector and each electronics module will have a unique serial number. A bar code shall be assigned and applied by ORNL.

Calibration: Each BLM detector and electronics channel shall have a measured and archived calibration .

Packaging: No electronics in the tunnel.
Minimum of 4 channels per analog module.
Maximum of 32 channels per analog crate.
Data acquisition uses VME environment

High Voltage: On/Off (CMD and RBAC)
Voltage level (CMD and RBAC)
Current readback
Polarity readback
0-3000 V, 1 mA
Dual HV supplies biasing alternate detectors

HV Cabling: Red RG-59 with SHV connectors (non-PTFE), (connected in daisy-chain).

Signal Cabling: Non-tribo-electric cabling with BNC connectors (non-PTFE)