H801CITD Board
The H801CITD board is a combo interface transfer board. It provides
the input and output clock source for the system and supports
functions such as input and output of alarm digital parameters.
NOTE:
As shown in , the H801CITD board has the following changes after an
upgrade from Ver.A to Ver.B:
Ports are adjusted by 180 degrees.
An ejector lever is added, facilitating board insertion and
removal.
Feature and Specifications
The H801CITD board supports the following functions:
Seven inputs of alarm digital parameters and one output of digital
controlling parameters
External monitoring Ethernet port to transparently transmit
monitored data
When configured with the BITSB clock daughter board, the CITD board
also provides the following functions:
Two inputs of 2 Mbit/s or 2 MHz BITS clock signals
Two inputs of 1 PPS+TOD time signals(supported in V800R013C10 and
later versions)
One output of 2 Mbit/s or 2 MHz clock signals
One output of 1PPS time signals (supported in V800R013C10 and later
versions)
Parameters
Power Consumption and Maximum Frame Size of Boards
You can query power consumption, maximum frame size, and normal
operating temperature of all boards.
lists the power consumption and maximum frame size of boards. "-"
indicates N/A.
The operating temperature of all the boards is -40°C to +65°C. The
lowest board startup temperature is -25°C.
NOTE:
The power consumption of the board is tested in the following
conditions:
Working voltage: -53.5 V DC.
Ambient temperature: 25 °C.
Static power consumption: All ports do not carry any loads.
Specifically, users under POTS ports hang up phones, xDSL ports are
deactivated, and optical modules are not installed on optical ports
Maximum power consumption: All ports fully carry loads. However,
only 25% users under POTS ports concurrently pick up phones and the
feeding current is 20 mA.
The board power consumption slightly varies with the power module
configured for the board and discreteness of components.
Table 1 Power consumption and maximum frame size of boards
Board | Power Consumption | Maximum Frame Size |
Universal interface board (GPIO) |
H801CITD | Static: 3.64 W Maximum: 4.55 W | - |
The clock module provides clock signals for each functional module
of the board.
Table 2 Pin assignments of the BITS/TOD IN1 port
Port | Pin | Signal | Remarks |
| 1 | BITS1_IN_B | Input B of channel 1 BITS clock signals |
2 | BITS1_IN_A | Input A of channel 1 BITS clock signals |
3 | PPS1_IN- | Negative polarity of channel 1 PPS time signals |
4 | TOD1_IN- | Negative polarity of channel 1 TOD time signals |
5 | TOD1_IN+ | Positive polarity of channel 1 TOD time signals |
6 | PPS1_IN+ | Positive polarity of channel 1 PPS time signals |
7 | - | - |
8 | GND | Grounding |
