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GTE Omni Si Database Technical Practices Issue 1 Manual

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Page 491

 rTL-130500-1001Data Architectural
Overview6.5 This paragraph provides an overview of the data.
architecture.
Asynchronous
Connection6.51 Asynchronous devices (terminals, hosts, and modems,
etc.) connect to the system via 
APMs (Asynchronous Packet
Managers) or 
DFP/APMs, which are collocated with their
devices. Except for call-control-related events (call setup,
disconnect, etc.), 
APMs contain all processing and transmission
capabilities necessary to support transmission of asynchronous
data. In...

Page 492

TL-130500-1001Synchronous6.5.2 Synchronous CCITT X.25 devices (hosts and public data
Connectionnetworks) connect to ‘the system via SPMs, which are col-
located with their devices. Connection from the SPM to its
device is via an RS-232-C type or V.35 type connector. The
W-232-C connectors are used for devices operating at less
than or equal to 19.2 kbps, while devices operating at up to 64
kbps use the V.35 connector interface. 
SPMs can be configured
as a DTE or DCE. Each SPM is assigned one or more...

Page 493

TL-4 30500-l 001
PD-2007.0 This section provides descriptive information about PCBsPRINTED CIRCUITinstalled in a system supporting the packet data option (see
BOARDSFigure 7.1).
All PO-200 cards are installed into PCMUS (Pulse Code
Modulation Universal Slot) card slots. All data cards occupy one
card slot.
In addition to the hard disk drive, floppy disk drive, and 
FB-
17220-BOA File Management System Data (FMSD) card, which
are a part of the basic voice system, the PO-200 Data System
can include the...

Page 494

TL-130500-1001Table 7.1PD-200 Packet Data Cards
FB??MNEMONICPCMUS CARD FUNCTION
FB-17229-A
FB-17230-BOA
FB-17231 -A
FB-17228-BOAFB-17227-A
FB-17242-A
FB-17226-A
FB-17246-A
FB-17242-A
* = two card setADMP-A *
ADMP-C *
UCB/DEP
PR
PBEIT
NC
VPLC
VPLC2
NCAdministrative and Maintenance Processor
Administrative and Maintenance Processor
Universal Control Board
Packet Router
Packet Bus Extender/Terminator
Tl Network Interface
Voice Packet Line Card (type 0 or 1)
Voice Packet Line Card 2 (type 0 or 1)
Network...

Page 495

SW 5210
TL-130500- 1001
UCB/DCP7.2 The UCB (Universal Controller Board) houses the DCP (Data
FB-17231 -A
Call Processing) software. This software runs the data switching
needed by the 
DFP/APM (Digital Featurephone with
Asynchronous Packet Manager), APM, SPM, and the system.
The 
UCB/DCP is divided into two major eight-bit
microprocessor circuits.
l The 
NETLINK microprocessor is used for communicating with
the LPB (Local Packet Bus). It also runs the necessary
protocols for communications over the LPB....

Page 496

TL-130500-1001PR7.3 The PR (Packet Router):
FB-17228-BOA
l Electrically enables LPB 0
- The PR directly accesses LPB 0 off the backplane.
- Since the PR activates LPB 0, the card must be at one end
of that bus. It is 
recommendec to place the PR in card slot
CO8 or 
DlO.NOTE: LPB 0 connects to the PR directly off the backplane.
This bus can be located in either file.
,’l Receives and transmits mini-packets on LPB 0 and LPB 1
- Each PR can support 2 LPBs (LPB 0 and LPB 1).
- LPB 1 is accessed by the PR...

Page 497

TL-130500-1001
NIC
FB-17242-ASVR 52107.5 The NIC (Network Interface Card) in coordination with a 
Tltrunk card set, allows PD-200 packet data to be sent over digital
common carrier lines to a remote PD-200 system. The card
contains two microprocessors. One microprocessor
communicates with the LPB., and the other with the PCM bus.
Mini-packets sent to the NIC card from the various peripherals
are converted to true X.25, HDLC-type (High-Level Data Link
Control) packets. These packets are in turn “chopped”...

Page 498

TL-130500-1001
VPLC7.6 The VPLC (Voice Packet Line Card) used for data transfer
FB-17226-Aonly provides the interface between the system LPB, PEC bus,
and external synchronous/asynchronous packet managers.
The card has eight circuits and is software programmable as
either a type 0 or type 1 card.
l When programmed as type 0 (card type VPLO):- the card can use all of its eight circuits
- the card can transport asynchronous data at a rate of 19.2
Kbps (kilobits per second) and/or
- the card can transport...

Page 499

SW 5210TL-130500-1001
VPLCP7.7 The Voice Packet Line Card 2 is primarily used for voice
FB-17246-Aand data transfer interfacing the LPB, PEC bus, and 
DFPIAPM(Digital Featurephone with Asynchronous Packet Manager).
The card has eight circuits and can be software programmed as
either a type 0 or type 1 card:
l When programmed as type 0 (card type 
VP20):
- the card can use all of its eight circuits
- the card can transport asynchronous data (and voice) at a
rate of 19.2 Kbps, and/or
- the card can...

Page 500

TL-130500-1001Table 7.2PD-200 Data Card Functions
r
cIF
IF
it
F
Functionoperates protocols needed to communicate over it.
‘B-l 
7230-BOATwo-card set)lControls administrative processing and file
management system interface.
oADMP-C is the only data card that does not
electrically connect to the LPB.
-B-l 7231 -A0Data call processing software is resident on this
board and communicates with other PD-200 cards
via the LPB.
lDual-function board which operates PD-200 data
switching features. Can also be used...
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