Raisecom
iTN201-R (C) Hardware Description
6 Appendix
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
60
6.1.4 E1 interface
E1 balanced interface
Table 6-4 lists the E1 balanced interface.
Table 6-4
E1 balanced interface
Property
Description
Connector type
RJ45
Impedance
120 Ω balanced interface
Rate
2.048 Mbit/s
Coding type
HDB3
Supported frame
format
Unframed, framed, framed with CRC-4, multiframe, multiframe with
CRC-4
Clock
Comply with the ITU-TG.823 recommendations.
Jitter
Comply with the ITU-TG.823 recommendations.
Frame structure
Comply with the ITU-TG.703/ITU-TG.704 recommendations.
Electrical feature
Comply with the ITU-TG.703 recommendations. Support short
distance.
Transfer feature
Comply with the ITU-TG.823 recommendations.
6.1.5 Clock interface
1PPS+TOD (I/O) interface
Table 6-5 lists the interface property of the 1PPS+TOD (I/O) interface.
Table 6-5
Interface property of 1PPS+TOD (I/O) interface
Property
Description
Connector type
RJ45
Electrical feature
RS-422 or RS-232
Baud rate
9600 baud
Cable specification
8-core shielded cable
1PPS+TOD (I/O) Port 1 is RJ45 type. Table 6-7 lists the wiring.