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12.2 Standard Options
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Four, Form-C (SPDT) contact outputs may be used to report events recognized by the 1133A,
or they may be controlled remotely, by command. Schedule contact outputs for up to 30 days in
advance to synchronize external equipment or to operate load-control switchgear. Contacts may
also be configured for KYZ pulse metering when used with Option 06.
Four, optically-isolated event inputs are provided and accept dc signal levels of 24
−
240 volts,
or 5-V CMOS-level voltages with modification (see Appendix B). Upon application of a signal to
one of these inputs, the event will be time-tagged to one microsecond resolution and recognized as
an event. These events may cause any of the actions described under “Event Logging.”
One IRIG-B Unmodulated output is provided for synchronizing relays, digital fault recorders,
and other power monitoring equipment that rely on the IRIG-B time code format.
Three communication ports are available: SERIAL 1, SERIAL 2 and one IEEE 802.3I 10base-T.
SERIAL 1 and 2 may be configured as RS-232, RS-485 or Modem.
12.2
Standard Options
Option Part Number
Option Description
1133opt02 - standard
32 MB Flash Memory Option
1133opt03
Standard Power Supply
1133opt04
Low Voltage Power Supply
1133opt05
Standard Mechanical Relay
1133opt06
KYZ–Rated Solid State Relay
1133opt07
Replace GNSS Input with IRIG-B Input
1133opt10
RS-232 Port, Port 1
1133opt11
RS-422/485, Port 1
1133opt12
Modem, Port 1
1133opt20
RS-232 Port, Port 2
1133opt21
RS-422/485, Port 2
1133opt22
Modem, Port 2
Table 12.1: 1133A Standard Options