FiberHome CiTRANS R820, Описание аппаратуры

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Appendix C Interfaces
Table C-1 Description about the RJ-45 Connector on the Panel of the SCUS1/2/3 Card
(Continued)
Diagram
Interface Pin
Note 1
Name
Description
6 UA Critical alarm
7 LALM-
Negative terminal of the lightning protection
alarm signal input
8 LALM+
Positive terminal of the lightning protection
alarm signal input
CKIO
1 CLKOP
External clock output
2 CLKON
-
3 PE
Protection earth ground
4 CLKIP
External clock input
5 CLKIN
-
6 PE
Protection earth ground
TOD
3
PPS_N Negative terminal of the PPS signal
4 GND
Signal ground
5 GND
Signal ground
6
PPS_P Positive terminal of the PPS signal
7
TOD_N Negative terminal of the TOD signal
8
TOD_P Positive terminal of the TOD signal
Note 1: Pins not included in the table are currently not in use.
C.2.2 E1 Interface
An E1 interface can transmit 16 channels of E1 signals. It connects the E1S1 card
to the DDF and inputs/outputs E1 signals. The 75 Ω and 120 Ω E1 cables can be
used to connect E1 interfaces on the CiTRANS R820.
The E1S1 card of the CiTRANS R820 provides E1 interfaces. Figure C-1 shows a
64-pin E1 interface.
Version: A C-3