Upgrading Strata DK Systems to DK424 Release 4.0–––––––––––––––––––––––––––––––––––––––––––––––––––

152 DKAdmin/DKBackup
Backplane Connector
IC10
P1
Program
ROMS
IC9, 10, 11, and 12
To RCTUBA/RSIU
Connectors
CD5
RCTUBB4
CBRUK
Heartbeat LED P3P2
IC9
U3
RKYS
Key Socket
Ribbon Cable to RCTUBA
(and RSIU if installed)
Ribbon Cable to RCTUBA
Install in
“RCTU” Slot
RBA4-0RBA4-9
RBA4-2RBA4-1
IC12IC11
RCTUBB4
3195
Upgrade Label
Software
Version
R4 =

Figure 27 RCTUBB4 Printed Circuit Board

P8 P7
P6 P5
IC10P1ProgramROMSIC9, 10, 11, and 12To RCTUC To RCTUC (and RSIU, if installed)
P3P2
IC9U3 U4RCA4-0RCA4-9RCA4-2RCA4-1IC12IC11
Software
Version R4 =
Software
Version R4 =
Software
Version R4 =
BATT
ON OFF
P9
3183
RCTUD4.X
Upgrade
Label
RCTUD4.X

Figure 28 RCTUD4 Printed Circuit Board

P9 P10
3182
UP
UP
RMMS
REA4X
Backplane ConnectorRRCS ConnectorsRRCSConnectorsHeartbeat LEDRCTUE/RSIUConnectorsTo RCTUE To RCTUE (and RSIU, if Installed)
P8
P2
CBRUK
P3
BATTON OFF
P5
Upgrade LabelRCTUF4
RCTUF4
SoftwareVersion R4 = X 2H

Figure 29 RCTUF4 Printed Circuit Board with RMMS

CAUTION! When removing the RMMS

from RCTUF, take off the

RMMS slowly, rocking back

and forth in the direction of

the arrows in the diagram.