Vodavi Triad 1/2/3 Product Description Manual

11-4 4 Optional Units
Ph as e Lo ck Loo p Un i t (P LLU)
The PLLU mus t b e add ed to the MPB board whenev er a T -1 or PRI board is
ins ta lled in the s ystem . T his boa rd re gulates the T -1/IS DN clock s ign als
from the T-1/PRI board to the network. One (1) PLLU sup ports all T-1/PRI
boards installed in the system.
Figure 1 1-2 7: PLLU (Phase Loc k L oop Unit) 

Opt ion al Un it s 11-45
Me mo r y Expa n si on U ni t (M E MU )
The MEMU is add ed to the MPB boa rd to pr ovi de an a ddi ti onal 5 12 K of
RAM to the sy st em.
Figure 11-28: MEMU (Memory Expansion Unit)
The MEMU is required whenever the systemcapacity exceeds 48 CO
Lines by 96 Stations. 

11-4 6 Optional Units
Me ss ag e Wa it B o a rd ( M SG 1 2)
TheMSG12isanoptionalboardfortheSingleLineInterfaceBoard(SLIB).
The MSG1 2 pr ovi de s me ss age wai ti ng volt ag e t o S LTs conne cte d t o i t .
Fi g u r e 1 1-2 9: MS G 12 (Me ssa ge W ai t Bo ar d) 

Opt ion al Un it s 11-47
Power Fai lu re Tra n sf er Un it ( P FTU)
The optional PFT U is installe d on the MISU board.
†The P FT U pr o vi des t he tr ans fer o f u p t o 6 CO l in es to 6 st ati o ns.
†A selector switch provides manual switchover of the CO lines.
†The controls are connected to the BKSU backplane.
Figure 11-30: PF TU (Powe r F ailure Transfe r Unit) 

11- 4 8 Ri ng Gen er ato r U ni t ( RGU )
Rin g Gene rator Unit (RGU)
The RGU is used whenever SLT devices are installed on the system. This
unit s supp li es t he ri ng v olt age an d me ssa ge wai t volt ag e f or the
operation of SL T on the system. T he unit is wall mounted and conn ects to
the BKSU. One per BKSU, EKSU1 is required for SLT operation.
Figure 11-31: RGU (Ringer Generator Unit) 

Syst em Co nfigurat ion Tabl es 11-49
System Con figuration Tables
Table 11-1: Digital System Capacity
Po r t s
CO/PB X/Centrex Lines
DID Lines
T- 1 Trun ks
ISD N Trun ks112 ma x . ( 8 p er L CO B/ GCO B Bo ar d)
96 max. (8 p er DID B)
144 max. ( 24 T- 1 trun k circuits per T1IB board)
138 max. ( 23 t r unks p er PR IB b oar d)
Statio ns
An alo g Station s
D igital Telep ho nes
Single Line Telephones252 max. ( 12 p er ETIB Bo ard )
252 max. ( 12/2 4 p er D TIB B oar d)
180 max. ( 12 p er SLIB Bo ard )
DT...

11-5 0 Sys tem Config ura tion Tables
Tabl e 1 1-2 : El ec tri ca l S pec if ic at i ons
AC Inp ut To Power Supp ly117 VAC ±10%, 60Hz single phase
Po we r Co nsum pti on10 A = 33 0 W at t s p er p o we r su p p l y
15 A = 48 0 W at t s p er p o we r su p p l y
Po we r Sup pl y F use - AC In put10 A = 6. 3 A/ 2 5 0V ; 15 A = 8A / 25 0 V
L ong itu di na l Ba la nce60 d b f r om 20 0 Hz t o 1 ,0 0 0 H z
40 d b f r om 10 0 0 H z t o 40 00 H z
I dl e C ha nne l N oiseLes s tha n 15 dbrnco for al l conne...

Syst em Co nfigurat ion Tabl es 11-51
s
Ta ble 11-3: Environmental Specifica tions
Operating Temperature32°to 104°F(0°to 40°C)
Optimum Temperature60°to 80°F(15°to 26°C)
Sto rage Temperat ure-40°to 140°F(4°to 60°C)
R el a tiv e H um idi ty5% to 90% non-condensing
H eat Dissipation (BTUs)
( ma xim um per ca binet le ve l)EX: 3275 BTU/Hour (BKSU+EKSU, (2) 15A Power Supp lies)
10A = 1125, 15A = 1637
Table 11-4: Loop Limits
Analo g Electro nic Telephone*Max imum l ength of station loop:
1000 feet of 24 AWG
(4...

11-5 2 Sys tem Config ura tion Tables
Table 11-7: Trunk Ordering Info: Public Network/Private Lease Lines
System P ort Ident ificat ion , Facility Int erface and Service Order Codes
Interface Card Ringer Equivalent N umber (REN) Facility Line Interface Jack Type
CO Port (LCOB) 0.8B 02LS2 RJ21X
Ground Star t (GCOB) 1.3B 02GS2 RJ 21X
Direct Inward Dial (DIDB) 0.0B 02RV2-T RJ21X
T-1 Por t ( T1IB) or
IS DN Port ( PRIB)6.0P 04DU9-B RJ45
Table 11-8: Physical Dimensions and Weight
Item Heig ht Width Depth...

Syst em Co nfigurat ion Tabl es 11-53
Table 11-9: Miscellaneous Specifications
Memory
Programmable Rea d-O nly Memory (EPROM)
Rand om Access Memory (RAM):512K expandable to1 Megabyte
256K expand able to 512 Kilobytes
Tel ephon e Transmitt erEle ctret m ic compa tible
Tal k Pat hs
CO/PBX/Ce ntrex pa ths
Inte rcom Pa ths144 CO/T1/PBX/Centre x talk pa ths (non-
blocking)
Non-Block ing
M usi c Cha nne l s
Music-On-Hold/Background Music 2 Cha nnels p er system (1 M OH, 1 BGM - different
so u r c e s)
Accou nt...