Black-box 5000 User Manual download pdf (Page 15)

Multiserver 5000

Async Channel Characteristics

Capacity — up to 41

Speed — 50 to 38,400 bps

Configuration — DCE

ABR — to 19.2 Kbps

Parity — Odd, Even, Mark, Space, None

Stop Bits — 1, 1.5, 2

Characters — 5 to 8 bits/character plus parity (code

levels 5 through 9)

Burst Rate — 422 Kbps (half-duplex over 56 Kbps

composite)

Error Control — Full-duplex, automatic request for

repetition (ARQ), with Cyclic Redundancy

Check (CRC), and selective reject. Proprietary

algorithm.

Classes — 64

Delay Characteristics — Average delay through the

Multiserver is two character times, plus the

transmission delay through the Multiserver

system. Although transmission delay is normally

very low, terminal users operating with an

echoplex system will experience this delay twice;

that is, once inbound to the computer and once

on echo outbound to the terminal. This delay is

not normally noticeable with speeds of 1200 bps

and above, but may be noticeable with speeds of

300 bps or less.

Sync Channel Characteristics

Capacity — up to 10

Speed —

External clocking: 1.2 to 38.4 Kbps

Internal clocking:

DLC: 1.2 to 38.4 Kbps;

ASCII Bisync: 1.2 to 38.4 Kbps;

H-P Sync: 1.2 to 38.4 Kbps;

RTS/CTS: 1.2 to 38.4 Kbps;

Sync-Pad: 1.2 to 38.4 Kbps;

EBCDIC Bisync: 1.2 to 38.4 Kbps;

Micom DLC 1.2 to 19.2 Kbps;

Micom Voice: 9.6 to 14.4 Kbps;

Fast Packet: 1.2 to 56 Kbps;

TDM: 1.2 to 48 Kbps.

Configuration — DCE

Protocols — DLC, ASCII Bisync, EBCDIC Bisync, H-

P Sync, RTS/CTS, Sync-Pad, MICOM DLC,

MICOM Voice, Fast Packet, and TDM

Multiserver 5000 (continued)

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Black-box 5000 User Manual Page 15

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