Alpha Technologies CFR 600, CFR 600XT, CFR 1000 - Manual (Page 17)

2. FEATURES
2.5 Communication / Interface Options, continued
11
Pin 1 Pin 5
Pin 6 Pin 9
DE-9 Connector (RS-232 and LAN)
RS-232 Serial Connector
External Alarms Connector
External I 2 D Connector
LAN Interface Connector
Pin 1 Pin 1
RJ-45
(External Alarms)
MMJ
(External I 2 D)
Figure 5
CFR-UPS Connector Identification and Pin-out
Rear Panel Connectors:
Below are the various communication connectors as they appear on
the back of the CFR-UPS. The photographs show the pin numbering for the
different connector types.