Digital Communications Interfaces ________________________________________________________
RF-MCGARDPRO
Hubbell Power Systems, Inc.
–
RFL™
Products
July 1, 2022
©2022 Hubbell Incorporated
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2.
# of Data Channels
: This value is an indication of how many timeslots the interface is
carrying.
If module is Disabled and Enable = Auto, field = “0”.
3.
Data Rate
: If the module carries one data channel or timeslot, this is 64 kbps. If a
module carries more than one, channel framing is enabled, so the data rate is (# of data
ch 1) * (64 kbps). This is because the framing function adds one timeslot’s
worth of data.
The data rate is multiples of 64, up to 768 kbps. If module is Disabled or Forced Disabled,
field = “0”. C37.94 is limited to 768 kbps data rate, or 11 timeslots plus channel framing.
4.
Timing
: This value tells the user the timing setting of the interface.
Range: Internal (Bus n Master), Internal (Bus n Slave), Loop (Bus n Master)
If module is Disabled or Forced Disabled, field = “N/A”
5.
Channel Framing
: This value tells the user the framing setting of the interface.
The status is Enabled or Disabled.
If module is Disabled or Forced Disabled, field = “N/A”.
6.
C37.94 Frame Sync
: This value tells the user the status of the frame sync of the
interface.
The status is
Yes or No.
If module is Disabled or Forced Disabled, field = “N/A”
7.
Channel Frame Lock
: This value tells the user the status of the frame lock of the
interface. If channel framing is disabled, value will be N/A
The status is
Yes or No.
If module is Disabled or Forced Disabled, field = “N/A”.
8.
Tx Activity
:
This is a status from the module of the Tx activity.
When healthy the value of this field is “OK”, in alarm the field reads “No Tx Activity”.
9.
Rx Activity
: This is a status from the module of Rx activity.
When healthy the value of this field is “OK”, in alarm the field reads “No Rx Activity”.
10.
C37.94 Remote Alarm
: This is a status from the module if there is a remote alarm.
If there are no remote alarms the field reads “None”. When there is a remote alarm the
field reads “Active”. A remote alarm is sometimes called a yellow alarm and indicates a
receive problem at the remote end.
11.
Timing Lock
: This is a status of the module’s timing lock.
When locked the field reads “Locked”, in alarm state it reads “No”.
12.
Loopback
: This is a status from the module for loopback.
This field will never be in the ‘green’ state because it is disabled if Loopback is
Inactive.
13.
Reset All
: This button, when clicked, will reset the counters of the associated comms
interface.
Note
: Reset the following counters to zero by the “Reset All” button.