Digital Communications Interfaces ________________________________________________________
RF-MCGARDPRO
Hubbell Power Systems, Inc.
–
RFL™
Products
July 1, 2022
©2022 Hubbell Incorporated
7-5
You cannot disable a module error if it is mapped to a Bus/Timeslot. The example shows
the error message for the T1/E1 module.
Figure 7-3. Configure Failed error message
To move the module to the Disable state, first remove the timeslot Configuration
assigned to this module.
7.2.4 Configure T1/E1 Digital Communications
T1/E1 can drop timeslots as needed or pass the timeslots on untouched when setup as “Drop &
Insert”.
NE T
RE SET
PWR
GAR D
PRO
NE T
RE SET
PWR
GAR D
PRO
NE T
RE SET
PWR
GAR D
PRO
T1
T1
T1
T1
Terminal
Drop & Insert
Terminal
TS1
TS2
TS2
B
C
A
Bus 2
Bus 1
Figure 7-4. T1/E1 Drop and Insert Example – Simplified
The following diagram shows the communications end points where the GARD is configured as
Terminal or Drop and Insert. For the Terminal ends assign Timeslots to functions present in the
GARD. To configure the Drop and Insert timeslots, assign timeslots to a function.
GA RD PRO
GA RD PRO
GA RD PRO
T1/E1 Terminal
T1/E1 Drop and Insert
COMMS Bus
1
and
2
COMMS Bus
1
or
2
COMMS Bus
1
or
2
T1/E1 Terminal
G2
G1
G3
TS1 DTPS Ch1 G1
TS2 DTPS Ch2 G1
TS3
TS4
…
TS12
TS1 DTPS Ch1 G1 TS1
TS2
TS2
TS3 DTPS Ch1 G3 TS3
TS4
TS4
…
…
TS12
TS12
TS1
TS2 DTPS Ch2 G3
TS3 DTPS Ch1 G3
TS4
…
TS12
(12 Channel limitation)
Figure 7-5. T1/E1Drop and Insert
