Procedure: Installing Watchdog Cables; Procedure: Installing A Ping Cable - GE D20 Installation And Operation Manual

GE Energy
Connections and Configuration
RS-232 Switch
Locate the following connections on the rear of the RS-232 Switch Panel:
Panel:
Connectors
•
P1 through P16: The RS-232 Switch Panel can switch up to eight serial
connections from each of the two CCUs - P1 through P8 are connected to CCU
A, and P9 through P16 are connected to CCU B.
•
J1 through J8: Field equipment is connected to these ports. If CCU A is active,
serial connections P1 through P8 are switched to J1 through J8. If CCU B is
active, serial connections P9 through P16 are switched to J1 through J8.
•
TB1: Connector block for connection of the monitor and control cables (referred
to as the Watchdog cables) from each of the CCUs. Refer to Assembly Drawing
977-061-AD
•
TB2, TB4: In systems with more than eight serial connections, used to
interconnect multiple RS-232 Switch Panels, as described in "Redundant Multi-
Node Systems" on page 86.
Procedure: Connect CCUs A and B to the RS-232 Switch Panel using Watchdog cables, as
Installing follows:
Watchdog
Step
Cables
1
2
3
Procedure: To connect the two CCUs using a Ping cable:
Installing a
•
Connect one end of the Ping cable to serial connector 7 on CCU A, and the other
Ping Cable
end to serial connector 7 on CCU B. Refer to Assembly Drawing: 977-0146-AD
for further details.
General
Full
, continued
J1
TB 3
P1
P9
Connect the connectorized end of one of the Watchdog cables to serial
connector 6 on CCU A.
Connect the connectorized end of the other Watchdog cable to serial
connector 6 on CCU B.
Connect the non-connectorized ends of both Watchdog cables to TB1 on
the RS-232 Switch Panel, as shown in Assembly Drawing 977-0161-AD.
Installation and Operations Guide
J2 J3 J4 J5
P2 P3 P4 P5
P13
P10 P11 P12
Action
994-0078-2.00-7
D20/D200
J7 J8
J6
P6 P7 P8
P16
P14 P15
85