1-6
Getting Started
652/654 POTS With/Without Battery Backup
652/654 POTS With/Without Battery Backup
Introduction
The 652 and 654 are 68302 microprocessor-based devices capable of transmitting
data and voice. Both are shipped with 1MB of DRAM and 1.25MB of Flash
memory, and have:
• an ISDN (RJ-45) connection; the 651 is a U interface and the 653 is S/T.
• two serial data ports; one async/sync V.24 interface with a DB25 connector,
one async V.24 with an RJ45 connector.
• two POTS ports
Note
This RJ45 serial data port is also used to connect to the integral 202/212
(V.23/21) modem. Power is supplied via an external DC power supply.
External Designation
Connector Type
Internal CTP
Designation
DATA 1
RJ45
Port 2
DATA 2
DB25
Port 3