Vodavi Triad 1/2/3 Installation Manual

							3-28 M ain Pro cesso r B oa rd (MPB ) Inst al l atio n
Remov ing a PC B
1 . R eve rs e the pr oc ed ure ab ov e. The re is a grou nd t ab loc at e d on the
top and bo ttom of each PCB toward th e front end of the card. There is
al so a gr ound t ab loca te d t o t he ri ght of each car d gui de in ea ch
cabinet.
2. Make sure when the PC Bs a re inse rte d into the card g uide a nd
s ec u r ed in th ei r re spe c ti ve c ar d s lo t s, tha t the gr o u nd t ab o n e ac h
ca rd mates with the ground tab on e ach card guide. This ensu re a
g ood ground potential to red uce RF I a nd E MI interference
p ossi bi li t ie s.
Main Processo r Bo ard (MPB) Installatio n
The MPB supervises all resources in the system and controls the
Inte r- Sys te m C ommunications (ISC) hig hways . E ach highwa y is
comprised of separate 4.096Mbps transmit and receive paths. Through
the se highway s, digitized aud io ( PC M), a nd 512Kbp s H DLC channe ls are
provid ed to and from all othe r circuits and ports of the sy stem. The MPB
also controls the e xchang e of PCM a nd s igna ling, sys te m
synchroniza tion, PC M sy stem tone s, PCM ga in and con ferencing, call
pr ocess ing , e tc.
The MPB i s comp ri se d of a Pr oces sor , Re se t and W at ch-Dog cir cui t, Res et
De te ct C ircuit, 2 port UART, LED indicators and S witch Controls , Rea l T ime
Clock, Ba ttery Back Up circuit, Modem Circuit, PCM a nd S igna ling C ontrol
AS I Cs, and PCM RO M and sys te m RA M. A ddi t iona ll y, a sy st em Pr ogr am
Module Unit (PMU), Memory Expansion Unit (MEMU) and Phased Lock
Loop Unit (PLL U) a re installed via con nectors on the MPB.
The Bas ic syst e m da tab ase , s cra tch- pad mem ory, et c. is st or ed in
512Kbytes of RAM. With the optio nal MEMU, the system’sRAMcan be
exp ande d by 5 12 Kbyt es , f or a t ota l of 1 Me gabyt e of RAM, w hen
expanded feature capacity is desired. Portions of the RAM are protected
from power los s by the Battery Back- Up circuit.
The RAM Battery Back- up circuitry is comprised of a long lif e lithium
battery, a voltage detector to sense the +5V DC source, and a switch to
control the con nection of the back -up lithium batte ry . 
						

							Main Processor Board (MPB) In sta llation 3-29
A 2- port Univ ersal Asy nchronou s Re ceiver T ra nsmitte r (UART ), prov id es
two asy nchronous RS- 232C output po rts. One port is connected to a DB9
connector providin g access for inp ut of informatio n to the system
dat aba se and out put of d at a su ch as SMDR.
The second port d rives the 2400 Baud On- Board Modem Circu it for
Remote access to the system’s d ata bas e a nd maintena nce f iles . Access to
the Mode m ca n also be provid ed to any CO line or Single L ine port
connected to the system. This connection is based on attributes in the
system database.
An eight position dip switch is employed to control specific operating
char act er is ti cs of t he MPB.
A bank of eight LED s indicate the opera tion s ta tus of the MPB. On p ower
up or reset, the software initiates a self-test routine. During this routine,
the LEDs 1-8 illuminate in sequence as each bank of 64K bytes or RAM is
te st ed and pas se s. Each LED re mai ns li t unt il RA M t est i ng i s com ple te ,
then the LEDs respond to MPB resource testing.
The re is a s ing le dip switch locate d abov e the PMU a nd be lo w the lithium
battery. T his switch controls the b atte ry backup function of the MPB. T his
swi tch shoul d b e s et t o t he ON pos it ion .
Befor e in st all i ng t he MPB, in st all t he daug hte r boar ds as re qui re d. Re fe r
toFig u re 3- 14.
Before progra mming the sys te m, switch 8 should be p lace d in the ON
position and power cycled off and on to initialize the sy stem databa se to
default. Once the database has been initialized, switch 8 should be
pl aced in th e O FF pos it ion to pr ote ct the d ata bas e.
Use ex tra care wh en re movi ng RS 232 cabl es fro m th eTr iad 1/2/3MPB or
SI U bo ards. H old the MPB/MI SU card in the ca rd slot be fore rem ovi ng t he
RS -232 ca ble . F ai lure t o p erfo rm t his actio n may re su lt in th e MPB/MIS U
card b ein g pul le d fr om its’sl o t . 
						

							3-30 M ain Pro cesso r B oa rd (MPB ) Inst al l atio n
Ta b l e 3 - 3 : M P B D i p S w i t c h F u n c t i o n s
Function SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8
Not Used
( S of t wa re C on tro lled )
No t U s e dNo t U s e d
Flow Cont rolON=
Xo nX o ff
OFF
RTS/CTS
Memo ry
DiagnosticsON = Te s t
ROM & RAM
OFF=
No Test
Default Data*
* If switch in ON position when power is off, default data is loaded.
* If switch in OFF position when power is off, customer database is saved.
Table 3-4: I/O Port RS232 Connections
PIN # Description
2TransmitData
3 Rec eive Dat a
7RTS(RequestToSend
8CTS(ClearToSend)
6DSR(DataSetReady)
5Grd
1 CD (Carr ier Detec t)
4 DTR (Dat a Term inal Ready) 
						

							Main Processor Board (MPB) In sta llation 3-31
Serial Interface Unit (SIU2)
A Universa l As ynchron ous Receiver Transmitter (UART), provid es two
RS-2 3 2C i nte rf ace por ts . T hes e t wo port s ar e conn ect ed to RJ48
connectors p roviding a cce ss for input information to the s ystem
dat aba se and out put of d at a.
In sta l li ng t he SIU 2
1. Unpack the SIU2 from its antistatic conductive bag in the packing
box. There should also be a plastic bag with two plastic standoffs and
two met al s c re ws.
2. Pus h the two standof fs into the hole s on the SIU2 board.
3. Locate the CONN6 connector a nd the two screw h oles (ou tlined) on
the MPB.
4. PushtheSIU2boardontotheCONN6connectorandbesureitis
seated correctly.
5. From the back s ide of the MPB board, inse rt the two metal screws into
the holes and tighten them into the bottom of each stand-off and
secure.
Refer toFig u re 3- 14. This completes the installation procedure for the
SI U2 . 
						

							3-32 M ain Pro cesso r B oa rd (MPB ) Inst al l atio n
Ph as e Lo ck Loo p Un i t (P LLU)
This board MUST BE installed whenever a T-1 or PRIB card is installed in
the s ystem. Th e Pha se Locked Loop Unit ( PL LU) is a n option boa rd which
generates a 32.768MHz clock synchronized to 1.544MHz from the
T- 1/PRIB interfa ce b oard or interna l clock. The 32.768MHz clock is
provid ed to CGMD on MPB. It consists of a PLL circuit, PLL Monitoring
circuit a nd clock (f rom T-1/PRIB interface boa rd ) monitoring circuit.
Installing t he PLLU
1 . Unpac k t he P LLU fro m i ts ant is ta ti c c o ndu c t i ve bag in the pa c ki ng
box.
2 . Locat e CO NN 10 an d CO NN1 1 (out li ned ) on t he MPB boa rd.
3 . R emo ve t he j u mper f ro m pin s 1 2 and 13 o n CO NN1 0.THI S JUMPER
IS VERY IMPORTANT, SO DON’TLOSEIT.
If t he PL LU is r emove d f rom the M P B boa rd, thi s jum per ne ed s t o be
put ba ck onto pins 12 an d 13 of this conne cto r or the MPB doe s not
operate properly.
4. Position the PLLU so that CON1 and CON2 match up with CONN11
a nd CO NN1 0 r esp ec t iv el y.
5. Push the PLLU onto their respective connectors and make sure the
P LLU is se at ed cor r ec t ly.
Refer toFig u re 3- 14. This completes the installation procedure for the
SI U2 . 
						

							Main Processor Board (MPB) In sta llation 3-33
Me mo r y Expa n si on U ni t (M E MU )
This unit is added to the MPB board to provid e an additional 512K of RAM
to the s yst em. T he M P B b o ar d i s r eq u ir ed whe n t he s yst e m c apa c it y
exc e eds 4 8 CO Li nes and 9 6 St at ions .
In sta l li ng t he MEM U
1. Unpack the MEMU from its antistatic cond uctive bag in the p acking
box.
2. On the MEMU, locate the battery s witch SW1 and put the switch in
the ON position.
3 . Locat e t he CO NN7 and CO NN8 conne ctor s (outl i ned) on t he MPB.
Loca te the CONN 1 and CONN 2 connectors on the MEMU.
4 . Pos it ion the MEMU so t hat CON N1 a nd CO NN2 mat ch up wit h CO NN7
a nd CO NN8 r es pe cti vel y on t he MPB.
5. Pus h the MEMU onto the ir resp ective conn ectors and mak e s ure it is
seated properly.
Refer toFig u re 3- 14. This completes the installation procedure for the
SI U2 .
Pr ogr am Mod ule Un it (P MU)
The PMU is ins talled on the MPB and con ta ins the s oftware u sed by the
sys te m to control f eatures and th eir function.
In sta l li ng t he PM U
1 . Unpac k P M U fr o m i ts an ti st at ic c o nd u c ti ve bag in t he p ac ki ng b o x.
2 . Tu rn th e P M U o v er so the l abe ls ar e do wn p ri o r to ins er t ing t he
module into the plastic guide rails on the MPB.
3. Slide the PMU until the card e dge of the PMU fully eng age s the card
e dge conne ctor of th e MPB. N ote that the PMU should ne ve r b e
removed from or installed in a live system. 
						

							3-34 Misce llan eous In terfa ce Un it (MISU) Installation
Fi gure 3 -1 4: MPB Da ught er Bo ards Inst al la ti o n
Misce llaneous Inte rface Unit (MISU) Installation
The Miscellaneous Unit (MISU) provides two external page ports, two
DT MF R ec e iv er c i rc ui ts , t wo E xt er nal M usi c so ur c es , a nd 6 d ry re la y
conta cts .
When using CO Lines as additional music inputs, keep in mind that the
music so urce may require a talk battery in series with either TIP or Ring.
Use e xtra c are wh en r emov in g RS- 232 ca ble s from th e Tria d 1/ 2/3 MP B
or SI U board s. Ho ld the MPB /MIS U c ard in th e car d slo t b efor e remo vi ng
the RS232 cab le . Fai lure to pe rform thi s ac tion m ay re su lt in th e
MPB/MIS U card bei ng pu lle d from its’sl o t . 
						

							Miscellane ous Int erface Unit (M IS U) I nst allation 3 -35
This talk batte ry boos ts the sig nal le ve l sufficiently so tha t the CO L ine
interface can read the signal.
Figure 3-15: Talk Ba ttery
The MISU con sis ts of the following :
†Two e xte rn al page p ort s ar e p rovi de d fr om t he am phenol conne ct or
on the front edge of th e MISU. These ports are connected to
trans formers, prov iding a 600 ohm imped ance.
†Music inpu ts are provided f rom the amph enol connector on the front
edg e of t he ca rd.
†6 ind epe nde nt re lay contacts are provid ed through the am phen ol
connector on the front edg e of the MISU . T hese contacts are
contr oll e d by soft war e from ent r ie s in the sy ste m d at abas e. Cont rol
si gnal s a re se nt by the MPB. T he outp ut dri ve s t he re la y coi ls,
controlling the state of the 1 a mp, 24V relay contacts.
†The signals to activate the externally provided power failure transfer
ar e p rovi de d on the MI SU.
†The M I SU ha s 2 D TM F Recei ve rs for sy st em use. (SLT, DI SA )
KSUMusic Source
Talk
Battery 
						

							3-36 Misce llan eous In terfa ce Un it (MISU) Installation
Table 3-5: MISU Wiring
Pair PIN # Color Description Pair PIN # Color Description
126
1WH /B L
BL / WHRELAY1T
RELAY1R14 39
14BK /BN
BN /B KEXP 2T
EXP2 R
227
2WH /O R
OR/WHRELAY2T
RELAY2R15 40
15BK /SL
SL/BK
328
3WH/ GN
GN /WHRELAY3T
RELAY3R16 41
16YL / BL
BL / YL
429
4WH /B N
BN /W HRELAY4T
RELAY4R17 42
17YL / OR
OR/YL
530
5WH/SL
SL/WHRELAY5T
RELAY5R18 43
18YL /G N
GN /YL
631
6RD/BL
BL/RDRELAY6T
RELAY6R19 44
19YL/BN
BN/YL
732
7RD/OR
OR /RD20 45
20YL/SL
SL/Y L
833
8RD /G N
GN /R D21 46
21VI/BL
BL/VI
934
9RD/BN
BN/RD22 47
22VI/OR
OR/VI
10 35
10RD /SL
SL/RD23 48
23VI /G N
GN /V I
11 36
11BK /B L
BL / BKBG M/MOH 1T
BG M/MOH1 R24 49
24VI/BN
BN/VI
12 37
12BK /O R
OR/BKBG M/MOH 2T
BG M/MOH2 R25 50
25VI/SL
SL/VI
13 38
13BK/ GN
GN /BKEXP1T
EXP1R 
						

							Miscellane ous Int erface Unit (M IS U) I nst allation 3 -37
Power Fai lu re Tra n sf er Un it ( P FTU)
The PFT U op tional unit is installe d on the MISU b oard It provid es th e
transfer of u p to 6 CO lines to 6 stations. It has a switch to pro vide manual
switchov er. T he controls a re conne cte d to the unit from the MISU.
The PFT U is w ired from the 25-p air connector on the KS U C O line
connector to the MD F, the n cross connecte d to the CO Line inp uts from
thetelephonecompany,totheCOLineinputsofthesystem,andto
Power Fa ilure S LTs . N ote that the SLT ma y also be connected to a SLIB in
the s yst em as sho wn inTa b l e 3 - 6.
In sta l li ng t he PF TU
1. Unpack the PFTU from its antistatic conductive bag in the packing
box. There should also be a plastic bag with two mounting screws
along with a multicolored cable.
2. Plug one end of the multicolored cable onto th e connector on the
PFTU.
3. Pos ition the PF TU so that the amp henol conne ctor is to the left.
4. Use the two mounting scre ws and mount the PF TU to the MIS U.
5. Locate the connector CONN1 on the MISU and plug the other end of
t he mu l ti c o lo r ed c abl e to th is c o nnec t o r.
Refer toFig u re 3- 16
.This com pletes th e installa tion p rocedure f or the
PFTU .