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management function is inapplicable.
2. For the pin arrangement of the cable connecting the LNK-UP interface and the serial port of the PC, please
refer to Appendix A.1.
3. For the connection of an LNK-UP interface and an LNK-DWN interface, please use RJ-45-RJ-45 flat
straight-through cable.
Power supply interface:
3.5 Expansion slot description
RC831-240E has 4 expansion slots, and they are titled SLOT1, SLOT2, SLOT3 and SLOT4. Various
expansion sub-cards can be inserted into these expansion slots to provide excellent configuration
flexibility, and to meet different requirements from customers. The table below lists some typical
configurations:
Slot Number
Maximum
Transmission
Capacity
E1
Line
Occupation
Multi-service
Configuration
Example
AC power supply interface
The AC power supply interface is a 3-phase AC power supply interface. Please make sure
that the power supply of the device is well earthed. For AC power supply without grounding
terminal, please connect the grounding terminal on the right of the device with the protection
earth of the device room.
DC power supply interface
The DC power supply interface has 3 terminals: -48V, PGND and BGND. Please make sure
that the PGND terminal is connected to the protection earth. Note that the grounding terminal
on the right of the device and the PGND terminal of the DC power supply are connected in
the device, and please be sure that one of them is well connected to the protection earth.
SLOT1
4 E1
E1 1~4
E-SUBM-FV35
(occupies E1 1)
E-SUBM-2FV35
(occupies E1 1~2)
E-SUBM-2E1
(occupies E1 1~2)
E-SUBM-2FE
(occupies E1 1~2)
E-SUBM-FE4E1
SLOT2
2 E1
E1 3~4
E-SUBM-FV35
(occupies E1 3)
E-SUBM-2FV35
(occupies E1 3~4)
E-SUBM-2E1
(occupies E1 3~4)
E-SUBM-2FE
(occupies E1 3~4)
SLOT3
4 E1
E1 5~8
E-SUBM-FV35
(occupies E1 5)
E-SUBM-2FV35
(occupies E1 5~6)
E-SUBM-2E1
(occupies E1 5~6)
E-SUBM-2FE
(occupies E1 5~6)
E-SUBM-FE4E1
User Manual
SLOT4
2 E1
E1 7~8
E-SUBM-FV35
(occupies E1 7)
E-SUBM-2FV35
(occupies E1 7~8)
E-SUBM-2E1
(occupies E1 7~8)
E-SUBM-2FE
(occupies E1 7~8)
8
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