vii
March 2001
Figures
Triad 1 Default Card Layout ........................................................................................ 2-6
Triad 2 Key Service Unit (BKSU/EKSU) ..................................................................... 2-7
Triad 1 Unit Basic KSU Back w/Mounting Plate Extended ............................... 2-9
Triad 1 KSU Mounting Holes and Installation Layout ........................................ 2-10
Triad 2 KSU Mounting Holes and Installation Layout ........................................ 2-13
Expansion KSU Back w/Mounting Plate Extended ............................................. 2-14
Connection of BKSU and EKSU .................................................................................. 2-15
Ring Generator Installation ......................................................................................... 2-17
PCB Installation ............................................................................................................... 2-23
MPB w/PLLU and MODU Installation ...................................................................... 2-28
Talk Battery ....................................................................................................................... 2-29
MISU w/SIU Installation ................................................................................................ 2-32
LCOB w/DTRU Installation ........................................................................................... 2-35
DIDB w/DTRU Installation ............................................................................................ 2-38
T-1 Clock Connect Cable Installation (Multiple Cards) ...................................... 2-44
T-1 Clock Connect Cable Installation (Single Card) ............................................ 2-45
T1IB w/DTMF4_A Module Installation .................................................................... 2-47
PRIB (Primary Rate Interface Board) ......................................................................... 2-49
BRIB (Basis Rate Interface Board) .............................................................................. 2-50
Electronic Telephone Interface Board (ETIB) ........................................................ 2-59
SLIB w/MSGU and DTRU Module Installation ....................................................... 2-63
Battery Back-Up Wiring ................................................................................................ 2-67
RS232 9-Pin Connector Wiring .................................................................................. 2-68
PFTU Wiring ...................................................................................................................... 2-72
CTI System Configuration ............................................................................................ 2-77