Raisecom Technology Co., Ltd
13
-48V PGND BGND
V35
Back Panel of the DC Device
4.2.1. Power Supply Switch
I
stands for ON,
O
stands for OFF
4.2.2. Power Connector
AC Power connector: It is the standard three-phase power connector. Please make sure
that the grounding is correct. If your AC power supply has no grounding signal please
connect the grounding end on the right of the device to the protection grounding of the
center office.
DC Power connector: It has three connection end: -48V, PGND and BGND. Please make
sure that the PGND end is connected to protection grounding. The grounding end on the
right of the device and the PGND are internally connected, so it is enough to connect any
of it to protection grounding.
4.2.3. V.35 Connector
Left figure is a standard ISO2593 connector of V.35
interface. This device has a DCE Connector Face-34 Pin
Female connector which can be connected to standard
DTE cable.
The description of this connector is as following table:
I-Input O-Output
Signal Name
I/O
Pin Name
Chassis Ground — CGND
-
A
Signal Ground — GND
-
B
Receive Data (A) — RD(A)
O
R
Receive Data (B) — RD(B)
O
T
Receive Timing (A) — RCK(A)
O
V
