3-28
CO/PBX Connections
Chapter 3 - System Installation
Figure 3-17: DIDB w/DTRU Installation
Digital CO/PBX Line Interface Boards
Digital CO/PBX line interface boards include the T1 interface board (T1IB), primary rate
interface board (PRIB), basic rate interface board (BRIB), and Voice over internet protocol
(VOIP) card.
T-1 Interface Board
The T-1 Interface Board (T1IB) provides the T-1 (1.544Mbps, 24-Voice Channel) digital
interface circuit, control circuitry, and synchronous clock control circuits. DTMF tone
detection units can be installed optionally on the T1IB. The T1IB has 8 LEDs on the front edge
of the PCB which indicates errors of T-1 line, in-use status, and synchronous clock enable
status.
DTRU
CON2
CON1
CN1
CN2
Summary of Contents for STARPLUS Triad XTS
Page 1: ...STARPLUSTM Triad XTS Installation...
Page 10: ...N O T E S...
Page 20: ...1 12 Product Description Chapter 1 Introduction...
Page 22: ...N O T E S...
Page 36: ...N O T E S...
Page 42: ...3 8 KSU Installation Chapter 3 System Installation Figure 3 4 Mounting Cabinets 0 1 2 48 3...
Page 77: ...CO PBX Connections 3 43 Chapter 3 System Installation Figure 3 25 Case 2 of Clock Chain...
Page 79: ...CO PBX Connections 3 45 Chapter 3 System Installation Figure 3 27 Case 4 of Clock Chain...
Page 104: ...N O T E S...
Page 134: ...4 32 VOIP Maintenance and Troubleshooting Chapter 4 Maintenance and Troubleshooting...
Page 138: ...iv Index...