CHAPTER 5. AUXILIARY EQUIPMENT INSTALLATION
Installing Loudspeaker Paging Access—278A Paging
Adapter
Requirements
Access to loudspeaker paging is provided by an information outlet. The
switch side of the cross-connect field is connected to a 278A adapter.
The 27A adapter is designed to operate on -24V dc. If it is to be
operated on -48V dc, it must be modified with a D-181321 kit of parts.
The adapter is mounted in the auxiliary cabinet, if one is available. If an
auxiliary cabinet is not available, a connectorized wiring block must be
locally engineered to replace the auxiliary cabinet ED-1E443-10
intra-connection panel. Six leads (T, R, SZ, SZ1, S, and S1) connect the
adapter to a TN763 auxiliary trunk circuit pack located in a port carrier.
A TN763 circuit pack contains four ports.
Figure 5-2 shows the connections for the Loudspeaker Paging feature.
The connections are for one zone. Repeat the connections for each
paging zone.
The connections shown in Figure 5-2 are used when the loudspeaker
interface equipment is not located in the equipment room. If the
loudspeaker amplifier is located in the equipment room, the connections
do not have to be routed through the cross-connect field.
5-5
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...