Infrastructure Cabling
The information is all contained in an Excel
spreadsheet
The cable labels have 5 fields in the database.
| # char |
field |
| 6 |
ID number |
| 3 |
system |
| 2 |
unit |
| 1 |
EW, i.e. east-west |
| 12 |
function |
For the infrastructure cables we treat unit and EW as a 2 character
subsystem field. The function code usually indicates the source and destination
of each cable. For infrastructure cables, there is usually one such cable
per crate, so there is no need to indicate the slot number at the destination
front-end crate. However, for the source location, slots and connectors
are indicated. The database lists the cable type and connector types on
each end as well as the location of each end of the cable. We have filled
the location fields with the crate locations only for purposes of tracing
cables since the slot info is encoded on the function code.
Note that if counting channels sequentially, the channel numbers for
the trigger cross-point (via taxi fiber), return cross-point and reset
fanout are identical. Because we have not yet purchased the terminal server
to connect to the crate CPU serial ports, the terminal cables have been
given local numbers rather than slot assignments to aid future cabling:
-
1-99 for collision hall,
-
100-199 for 1st floor,
-
200-299 for 2nd floor.
The master sheet in the Excel file also lists the TSI cross-point module
number and the associated VRB for the front-end crates. The VRB and
FIB crates are also given fake TSI numbers in order to integrate them into
the general scheme for the fiber patch panel.
Clock Distribution
-
Cable
List
-
System= CLK
-
Sub-system= ECL
-
Function= ll-tttttt
-
ll= Crate Location
| # | ll | Location |
| 0 | NW | Endwall NWT |
| 1 | SW | Endwall SWT |
| 2 | NE | Endwall NET |
| 3 | SE | Endwall SET |
| 4 | 1A | 1RR15E-T |
| 5 | 1B | 1RR15E-B |
| 6 | 2A | 2RR22H-B |
| 7 | 2B | 2RR34C-B |
-
tttttt= Signal type
- CDFCLK= 132 ns CDF clock
- BC= Beam crossing marker
- B0= Bunch 0 marker
- ABORT= Abort gap marker
- ALT= Alternate, e.g. 53 MHz clock for SVX
- RETURN= Return signal for monitorring at master clock crate
- SPARE
Clock Fanout
-
Cable
List
-
System= CLK
-
Sub-system= LVn where
-
"LV" indicates these are the LVDS signals going to each tracer.
-
"n" is a the number of the fanout crate (0-7).
-
Function= ssA/ccccccc
-
ss= slot nubmer in fanout crate
-
A= A or B is connector on fanout card
-
cccccc= front-end crate location
Return Cable
-
Cable
List
-
System= DAQ
-
Sub-system= RTN
-
Function= ss-h/cccccc
-
ss= slot in return cross-point crate
-
h= hex digit (0-F) for connector:
-
0-7 on front panel,
-
8-F on transition card
-
cccccc= front-end crate location
Reset Cable
-
Cable
List
-
System= DAQ
-
Sub-system= RES
-
Function= Snn/cccccc
-
S= slot (A-H)
-
nn= connector (1-24)
-
cccccc= front-end crate location
Terminal Cables
-
Cable
List
-
System= DAQ
-
Subsystem= TRM
-
Function= nnn--cccccc
-
nnn= local ID number
-
cccccc= front-end crate location
Fiber
-
Cable
List
-
Patch Panel Layout
-
System= DAQ
-
Sub-system= TSI
-
Function= ppA/cccccc
-
pp= patch panel row
-
A= column (A-D)
-
cccccc= front-end crate location
Each patch panel is 24 connectors wide with 6 allocated for each fiber
bundle coming from a front end crate (2 read-out taxi, 2 Ethernet, 1 TSI
taxi, 1 spare). For the counting-room crates, the ethernet slots are not
used and we have purchase 4-fiber bundles.
Diagnostic Ethernet
-
Cable
List
-
System= CLK
-
Sub-system= ECL
-
Function= DIAG-rrrrr-n
-
rrrrr= Rack Location
n= 1 or 2 for two lines
Signal Monitoring
--Not yet available
Note on Rack Names:
First and second floors are as in run 1, e.g. 1RR18D is first floor,
row 18, rack D. For the collision hall, there is a 2-letter rack type and
a 3-letter corner (e.g. NWB is north-west bottom). The locations are:
-
CO= COT
-
CA= Central Arch
-
EP= Endplug
-
SV= SVX FIB.
Last modified 9 September 1999
by jdl@fnal.gov