Specifications

Control Unit Interfaces
Signaling
Audio/
Channel
Data
Interface
Applications
Rate
Rate
ISDN-BRI
Digital switch to MLX
16 kbps
S/T*
telephones
(D);
64 kbps
(B)
Digital switch to ISDN
64 kbps
7500B Data Module
(B and D)
DS1
Switch to the
64 kbps
following services
■ T1 — Emulated tie
trunk, loop-start,
and ground-start
■ ISDN-PRI services
Accunet®
switched
digital service,
Megacom®
WATS,
Megacom® 800,
Software Defined
Network (SDN)
RS-232C
Switch to PC
2400 bps
2400
connected to system
or
bps
programming
1200 bps or
RS-232C port
1200
bps
Switch to AT&T model
1200 bps
1200
572 printer, PC
bps
with CAS, or CAT
connected to
RS-232C port
* Call handling derived from CCITT recommendation Q.931
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