Vodavi Triad 1/2/3 Installation Manual

							2-10 K SU & Po we r Suppl y ( PSU) Inst al l atio n
Fi gure 2-4 :Triad 1KSU Mounting Holes and Installation Layout 
						

							KS U and Power S upply (PS ) Inst allation 2 -11
KSU and Power Supply (P S) Installation
TheTr iad 2Sys tem cons ists of a Bas ic KSU (BKSU) a nd Expans ion KSU
(EKS U). T he bas ic exterio r of theTri ad 2Sy st em is shown inFigure 2 -2.
Mounting theTr i a d 2Basic KSU
The Bas ic KSU is a me tal frame cabinet d esigne d f or w all m ounting.
Emp loying the KSU mountin g temp late provided with the BKSU , ma rk
the location of the two screws to mount the BKSU. Again, the KSU must
NOT be moun ted on a mas onry or dry -wall surface, in this case a wooden
back-board is required. Refer toFi g ur e 2 - 2for the distance between
mounting holes.
The BS KU is mount e d wi th four # 10 or l ar ger , 1½inch or longer screws.
1. Drill pilot holes in the two locations m arked, ins ert the screws and
ti ght en le avi ng a bo u t½inc h expos ed.
2. Mount the Ba sic KSU on the scre ws and tighten the screws se cure ly.
3. Remove the front cov er by turning the two cover screw s counter
clockwise.
4 . Ti lt a nd l if t the c ove r to r em ove.
5. Ins ert the screws to the mou nting hole s of th e BKS U an d tighte n the
screws securely. 
						

							2-12 KS U and Po wer Suppl y ( PS) Inst al l atio n
Figure 2-5:Tr i ad 2Ba sic KS U Back w/ Mounting Pla te E xtended 
						

							KS U and Power S upply (PS ) Inst allation 2 -13
Fi gure 2-6 :Triad 2KSU Mounting Holes and Installation Layout 
						

							2-14 KS U and Po wer Suppl y ( PS) Inst al l atio n
Mounting the Expansion KSU (EKSU)
The E xpans ion KSU is a m etal housing des igned f or wall m ount
installation. If required, an EKSU is mounted on the right side of the BKSU.
1. Before mounting the Expansion KSU, remove the KSU
Interconnection C ov er on the righ t s id e of the Basic KSU.
2. Mount the E xpans ion KSU on the scre ws and tighten the screws
securely.
3 . Mount the 2 s ide br acke t s b et wee n t he Basi c an d Ex pans ion KSUs.
4. Remove the front cov er by turning the two front cove r screws
counter clockwise.
5 . Ti lt a nd l if t the c ove r to r em ove.
6. Inte rconne ction is achie ved via a am phen ol type conne ctor. No cab le
is use d to conne ct the BKS U and the E KSU toge ther. Refe r to
Fi gur e 2-8.
Figure 2-7: E xpansion KSU Ba ck w/Mounting Plate E xte nde d 
						

							KS U and Power S upply (PS ) Inst allation 2 -15
Figure 2- 8: Connection of BKSU and EKSU 
						

							2- 16 Ri ng Gen era to r Ins tal l at i on (R GU )
Rin g Gene rator Installatio n (RGU)
The Ring Generator Unit is needed in the BKSU where a SLIB is to be
installed, to provide ring voltage and Message Wait source power.
According to the installation site, two types of RGUs are available:
External a nd Internal.
†The external RGU is mounted outside the KSU to the wall with the
two screws provid ed and is connecte d to the system back plane via
the C N12 (PC B lette ring) connector.
†The inte rna l RGU is m ounte d inside the BKS U to the bottom side
pane l with the two screws provided and is conne cte d to the sys te m
back pla ne via t he CN1 2 (PCB l e tt er in g) conne ctor. 
						

							Ring Gene ra tor Ins tallat ion (RG U) 2 -17
Figure 2-9: Ring Ge nerator Installation
IN TERN AL
RGU
EX TERN AL RG UCN12 CONNECTOR
Internal RGU supports up to two (2)SLIB
Boards.
B eyo nd tw o b oard s req u ires th e Ex tern al
RGU in place of the Internal RGU. 
						

							2-18 Pow er Suppl y Unit Inst al l atio n
Po we r S u pp l y Un it In s t a l la t i o n
The Power Supp ly Unit p rovides p ower for the sys tem b oards and
telephones, converting AC voltage input to a ppropriate DC volta ges .
Before I nstallati on:
†As su r e tha t t he A C p lu g co nnec t ed to th e B K S U i s N OT plu gged int o
the A C o u tl et .
†Place the PSU in the le ft mos t slot in the BKSU , alignin g the card
gu i des wi th the P SU P CB a nd P S U fr ame fl ange s.
The PSU can operate from either 115 or 220 volts AC based on the setting
of the VTG Selector S witch on the lower fron t of the PS U.
†If local AC is 110 volts, move the switch to the upper position to
display 115V.
†If local AC is 220 volts, move the switch to the lower position to
display 220V.
Al t h o u g h , th eTr iad 2System PSUs are equipped with power-line
tr ans ie nt pr ote cti on, an e xt er nal Powe r L ine S urge Pr ote ctor s hould be
installed at the AC outlet to give additional protection, especially during
violent th understorm activ ity. Refer toL ig h tn i ng P ro tec ti o n. 
						

							Powe r Supply Unit I nst alla tion 2 -19
Figure 2-10: Installation of Power Supply Unit ( PSU)
Tr iad 1CARD
GUIDES
Tri ad 2CARD
GU ID E S