KRONE EQUIPMENT


BT decided to use Krone made Insulation Displacement Connections IDC on all their terminations in the field. It was because of BT's buying power and the fact that BT commanded a such a presence in the business that other British companies adopted Krone as standard equipment.


LIST OF IDC PARTS USED BY BT

Strip Connexion No 237A        10 pair with disconnection contacts
  "     "          237B        10 pair with connection contacts
  "     "          237C        10 pair has no disconnect connections
  "     "          237E        20 wire earth common, red
  "     "          237D        76 wire earth common, red
  "     "          238A        |
  "     "          239A        | Low profile 3 + 4 way
  "     "          241A        | Low Profile 10 pair strip fuw Box Conn 201A
  "     "          242A        | Low profile 10 + 20 for under floor boxes
  "     "          243A        8 pair with disconnection contacts

Cords Connexion D99469         2 wire test cord - for box 200
  "      "      D94470         2 wire test cord - plug ended at each end
  "      "      D95737         2 wire test cord - plug ended at one end fuw Box Conn 201A
  "      "      D99471         4 wire test cord - std strip 237A
  "      "      D99473         4 wire patching cord fuw with disconnection strips

Protector Mounting No 5B       10 way mounting - Protectors 14A on strips con 237

Strip Designation No 51A       Label holder for SC 237
  "        "      No 53A       Label holder for fitting onto SC frame mounting - small (15mm deep)
  "        "      No 54A       Label holder for fitting onto SC frame mounting - large (22mm deep)
  "  	   "	  No 56A       Label and holder - 10 pair
	
Wedges Locking   No 23A        1 pair black coloured disconnect wedge
  "      "       No 24A        1 pair Red marker wedge for priority circuits (does not disconnect)
  "      "       No 25A        10 pair disconnect wedge

Frames Mounting 5/20/8A        Used in BC 300 series - stainless 8 way
  "       "     5/30/10A       Used in BC 300A series - stainless 10 way
  "       "     5/5O/34A       Used in BC 500 series - 50 way

Plate Cable Fixing No 1B       Screw fix, 2 way
  "     "     "    No 1C       Push in BC 300
  "     "     "    No 1D       Push in BC 500 and FD 105A

Inserter Wire No2A             Terminating tool for SC 237

Box Connexion
 No 200A          Plastic box and lid similar to HES 4 box
 "     "      No 201A          10 or 20 pair DP and Earth
 "     "      No 202A          BC 200 case, 40 pair DP
 "     "      No 203A          Half size BC300 with FM 5/22/5/A
 "     "      No 230	       30 pair
 "     "      No 251	       Box to take 5 IDC strips
 "     "      No 254	       Network connection box - IDC to Screw
 "     "      No 300A          Plastic box and lid. 230mm h, 210mm w, 120mm d
 "     "      No 301A          BC 300A with frame mounting 5/30/10A, 100 pair
 "     "      No 302A          BC 300A with frame mounting 5/30/8A, 80 pair  
 "     "      No 304A          Monarch BC
 "     "      No 330A          Herald BC (20 port)
 "     "      No 331A          Herald BC (60 port)
 "     "      No 350A          Regent BC
 "     "      No 403A          Fitted with 3 x con 226
 "     "      No 406A          Fitted with 6 x con 226
 "     "      No 426A          2 x BC400 with 3 x con 226
 "     "      No 510A          Metal 340 pr, 1 way, 1000mm h, 300mm w, 150mm d
 "     "      No 520A          Metal 680 pr, 2 way, 1000mm h, 500mm w, 150mm d
 "     "      No 530A          Metal 1020 pr, 3 way, 1000mm h, 750mm w, 150mm d
 "     "      No 560A          Metal 2000 pairs, 2000mm h, 750mm w, 150mm d

Frame Distribution No 100A     Double sided frame - line side has 5 verticals -
                               4200 pairs.  Equip side has 6 horizontals
                               3600 pairs. 1050 long, 2600mm high, 650mm wide
Frame Distribution No 105A     Double side frame of 2 verts giving 1380 pairs each side.
			       500mm long, 2000mm high, 300mm wide

Earth Clamp No 1A              Terminates up to 35mm earth cable on FD's

Cover No 11A                   70mm low profile box cover

Rings Jumper No 37A            Jumper rings for use in BC's

Part No 1/DPO/163              2 connector posts
 "    " 1/DPO/164              M3 x 6mm screws and part no 5/DSC/575
 "    " 1/DCL/183              Base clamps + 2 screws

Screw No8 x 12mm               For fixing items in BC 300 and clamping

Wire Connector 9541	       2 wire B/Y - Y/B
  "      "     9571 	       3 wire G/W - W/G - R/G
  "      "     9573	       4 wire R/G - Bk/O - W/G - G/W

Multiline Terminating Units
Switching module	       10 pair disconnected Krone strip - brown
Bridging plug 		       Connection plug for above
NTTA PSTN 10 pair	       MTU PSTN test module
NTTA test cord		       MTU test cord - fits between disconnected 
			       strip and test module

 
 
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Last revised: December 21, 2010

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