Black Box 5000 - Manual (Page 15)

Multiserver 5000
14
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)