PHASE B
PHASE
CONTROLLER
PHASE C
PHASE
CONTROLLER
SUPERVISOR
CONTROLLER
COMMUNICATIONS
CONTROLLER
#1
ALARM I/O
MODULE
FROM
PHASE B CT
FROM
PHASE B CT
RELAY
CONTROL
DTT IN
SPARE
INPUT
LOCAL ALARM
RELAY
COMM. ALARM
RELAY
RECLOSE BLOC
RS-485 /2
DTT IN
89B
INPUT
SUP EN /4
ALARM /4
TRIP
STATUS
SUP EN /3
ALARM /4
SUP EN /2
ALARM /4
LOCAL/REMOTE
SERIAL LINK
COMMUNICATIONS
MODULES
(56 OR 64-Kbps DIRECT DIGITAL,
56 OR 64-Kbps FIBER OPTIC, OR
7.2-Kb
s MODEM
NOTE: MULTI-LINE CONNECTIONS ARE INDICATED BY A SLASH FOLLOWED BY A NUMBER FOLLOWING THE SIGNAL NAME.
FOR EXAMPLE, “ /4 “ INDICATES A FOUR LINE CONNECTION.
COMMUNICATIONS
CONTROLLER
#2
Figure 2-1. Block diagram, RFL 9300 Charge Comparison System (two-terminal) - continued
RFL 9300 RFL Electronics Inc.
October 29, 2001 2 - 3 (973) 334-3100