Chapter 3 Installation and test
1.Make sure the E1-link cables are compatible with the RC901-FE4E1
If the E1 links with which you want to connect RC901-FE4E1 are combined with
PDH or SDH equipments, please check the interface type of E1, definition and
impedance of interface in relevant manuals.
2. Choose proper E1 link cables
Balanced: 0.6mm(22AWG) twisted pairs, up to 1500m
3.BALANCE-RJ45 UTP E1 pin defined as shown below
Refer to the table and figure below when use the balanced interface (120
Ω
)
PIN
No. 1 2 3 4 5 6 7 8
Label TD+
TD-
Not
used
Not
used
RD+ RD- Not
used
Not
used
Signification Output-
Input+ Input-
120
Ω
balanced interface connect with other equipment, need specify the pin of the
equipment. The connection of UTP pin is shown below.
RC BALANCE-RJ45
E1 balanced interface
TD
＋
TD
－
Output-
RD
＋
Input+
RD
－
Input
－
Note:
TD
＋
and TD
－
are always in one twisted pairs
RD
＋
and RD
－
are always in one twisted pairs
4. Environment
Temp: 0-45
℃
Humidity: 5%~90% no condensing
5. Power supply
AC: 220v/50Hz Voltage 165~265V
DC:
－
48v Voltage
－
36~
－
72V
Power consumption
≤
3W
7
