Miscellaneous Wiring Installation
Note: The ST terminal leads should be terminated on the
following pairs: 1, 4, 7, 10, 13, 16, 19, or 22 (the first pair of any
3-pair group).
Connect the ST leads from the terminal selected in Step 4 to the
assigned terminal in the blue or white station distribution field.
5.
Trunk/Auxiliary Field Connections—Telephone Used for Emergency
Transfer and as a Normal Extension
Connect telephone as follows:
At trunk/auxiliary field, connect a pair of wires between the -48V and
GRD terminals on the yellow emergency transfer row/connecting block
to the EM TRANS RELAY PWR terminal (Figures 4-26 and 4-27,
respectively for 110-type and 66-type hardware).
1.
2.
3.
4.
5.
Connect CO trunk leads from the purple field to TC terminals on the
yellow emergency transfer row/connecting block for each trunk.
Connect CO trunk leads from the green field to TK terminals on the
yellow emergency transfer row/connecting block for each trunk.
Connect telephone leads from the purple analog line board
row/connecting block to the LC terminals on the yellow emergency
transfer row/connecting block for each telephone.
Connect ST leads on the yellow emergency transfer row/connecting
block for each emergency transfer telephone to the ST terminal
appearance in the purple trunk/auxiliary field.
Connect the ST leads from the terminal selected in Step 4 to the
Telephone Installation
Install telephone assigned to emergency transfer as follows:
assigned terminal in the blue or white station distribution field.
Connect telephone to the information outlet.
Install patch cords/jumper wires between the switch side and the
station side of the station distribution cross-connect field.
1 .
2 .
4-53
Содержание System 75
Страница 1: ...AT T AT T System 75 and System 75 XE Wiring...
Страница 2: ...AT T AT T System 75 and System 75 XE Wiring 555 200 111 Issue 2 August 1989...
Страница 16: ...System Wiring Figure 1 2 System Uniform Wiring Plan 1 7...
Страница 17: ...CHAPTER 1 INTRODUCTION Figure 1 3 Sample Uniform Wiring Installation 1 8...
Страница 29: ...CHAPTER 2 HARDWARE 66 110 Type Figure 2 1 Block Diagram of System 75 or 75 XE Installation 2 2...
Страница 35: ...CHAPTER 2 HARDWARE 66 110 Type Figure 2 4 110A Type 100 Pair Terminal Block 2 8...
Страница 36: ...110 Type Hardware Description Figure 2 5 110A Type 300 Pair Terminal Block 2 9...
Страница 98: ...Typical System Equipment Room Floor Plans 3 15...
Страница 143: ...CHAPTER 3 EQUIPMENT ROOM DESIGN 3 60...
Страница 144: ...Equipment Room Hardware And Cabling Installation 3 61...
Страница 162: ...Equipment Room Hardware And Cabling Installation 3 79...
Страница 163: ...Equipment Room Hardware And Cabling Installation 3 80...
Страница 197: ...Tables Table 4 A Recommended Protectors 4 42 v...
Страница 203: ...CHAPTER 4 STATION WIRING Figure 4 4 3 Pair to 4 Pair Wiring Labeling From Equipment Room to Information Outlet 4 6...
Страница 205: ...CHAPTER 4 STATION WIRING Figure 4 5 4 Pair Station Wiring Labeling From Equipment Room to Information Outlet 4 8...
Страница 212: ...Adjunct Powering 4 15...
Страница 214: ...Adjunct Powering 4 17...
Страница 216: ...Patch Cord Jumper Installation And Administration 4 19...
Страница 241: ...CHAPTER 4 STATION WIRING 4 44...
Страница 244: ...Miscellaneous Wiring Installation 4 47...
Страница 246: ...Miscellaneous Wiring Installation 4 49...
Страница 252: ...Miscellaneous Wiring Installation 4 55...
Страница 254: ...Miscellaneous Wiring Installation 4 57...
Страница 277: ...CHAPTER 5 AUXILIARY EQUIPMENT INSTALLATION Figure 5 1 Connections for Loudspeaker Paging and Music on Hold 5 4...
Страница 314: ...CHAPTER 5 AUXILIARY EQUIPMENT INSTALLATION 5 41...
Страница 324: ...CHAPTER 5 AUXILIARY EQUIPMENT INSTALLATION 5 51...