Hitachi GR4000 Series Installation Manual page 112

GR4000 Installation Guide Version 1.00 - Preliminary
(11) 10BASE-T/100BASE-TX Interface Cable（CAT.5，RJ45 connector）
The boundary with 10BASE-T and 100BASE-TX is the connector on GR4000.
For the connection with 100BASE-TX, use a UTP interface cable categorized as
"Category 5". (It is possible to use a UTP interface cable categorized "Category 3" for the
connection only with 10BASE-T.)
The maximum transmission distance for the connection of GR4000 with 10BASE-T or
100BASE-TX is 100m.
Figure 3.2-12 below shows the rough sketch of the cable , and Table 3.2-17 shows the
pin arrangement on GR4000.
RJ45
Figure 3.2-12 Rough Sketch of Twist Pair Cable（CAT.5）
Table 3.2-17 Pin Arrangement on the GR4000 (for 10BASE-T/100BASE-TX interfaces)
Pin number
1
2
3
4
5
6
7
8
(Note 1) : This should be connected to the port when using 100BASE-TX. It is possible to choose "connection" or
"disconnection" when using the 10BASE-T.
(Note 2) : Because the interface uses differential, twisted pairs of wires, make (A) and (a), (B) and (b), (C) and (c), and
(D) and (d) into pairs when using 100BASE-TX, and make (A) and (a), and (B) and (b) into pairs when using the
10BASE-T. For the interfaces other than those, you can choose "disconnection" or "connection" ignoring the combination
of pairs.
94
Specification
Sending （＋） （A）
Sending （-） （a）
Receiving（＋） （B）
Unused （Note 1）
（C）
Unused （Note 1）
（c）
Receiving（-） （b）
Unused （Note 1）
（D）
Unused （Note 1）
（d）
RJ45 connector
520-10-014-20X