CHAPTER 4. STATION WIRING
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
CO TRUNK
CIRCUIT PACK
(TN747)
TC
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
CENTRAL OFFICE
TK
LC
LEADS
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
EMERGENCY
TRANSFER TERMINAL
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
574-5 POWER
TRANSFER UNIT
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
ANALOG LINE
CIRCUIT PACK
(TN742 OR TN769)
ST
TO BLUE
OR WHITE
FIELD
PART OF 66-TYPE
CONNECTING BLOCK
ASSOCIATED WITH
AUXILIARY
CONNECTOR
GRD
-48V
Figure 4-29. Connections at Trunk/Auxiliary Field Equipped with
66-Type Hardware for Telephone Used for Emergency
Transfer and as Normal Extension
lnstalling Optional DID Make-Busy Trunk for Use with 574-5 Power Transfer
Unit
Requirements
Figure 4-30 shows the connections at the trunk/auxiliary cross-connect
field for a direct inward dialing (DID) make-busy trunk. This option
prevents DID trunks from being taken out of service by the serving CO
during emergency transfer. This trunk is used for this function only and
should be assigned to the twenty-fifth pair of a network interface jack.
4-50
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...