Huawei ATN 950B - Page 41

Front View Pin Usage
5 Positive transmit end of external clock
6 Unspecified
7 Unspecified
8 Unspecified
Table 4-5 Pins of the TOD interface
Front View Pin Working Mode
External Time Input
(1PPS + Time
Information)
External Time Output
(1PPS + Time
Information)
18 24 3567
1
Unspecified Unspecified
2 Unspecified Unspecified
3 Negative input for the 1pps
signal
(RS422 level)
Negative output for the 1pps
signal
(RS422 level)
4 Grounding end Grounding end
5 Grounding end Grounding end
6 Positive input for the 1pps
signal
(RS422 level)
Positive output for the 1pps
signal
(RS422 level)
7 Negative input for time
information
(RS422 level)
Negative output for time
information
(RS422 level)
8 Positive input for time
information
(RS422 level)
Positive output for time
information
(RS422 level)
NOTE
The TOD interfaces can be configured so that they can work in one of the preceding two working modes.
ATN 950B Multi-service Access Equipment
Hardware Description
4 AND1CXPA/AND1CXPB - System Control, Cross-
connect, and Multi-protocol Process Unit
Issue 03 (2012-07-23) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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