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...

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...

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...

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...

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...

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...

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...

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...

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...

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...