Hitachi GR2000 User Manual
Component Details
GR2K-GA-1002
3-7
Rev. 6.03
LINE ERR
LED: Yellow
Yellow: Line section II/W fault detection.
T/R
LED: Green
Shows the
operating
condition of each
line.
operating
condition of each
line.
Conditions of transmission and reception signals.
LAMP TEST
Switch
(Non-Lock)
(Non-Lock)
Lamp test
Press: LED’s on all the boards are lit.
REST
Switch
(Non-Lock)
(Non-Lock)
Manual resetting
the device
the device
Reset.
Table 3-4
Specifications of 9-pin D-sub Connector on CONSOLE (RS232C) Port
Pin No.
Specifications
7
Request to send (RS) output
8
Clear to send (CS) input
6
Data set ready (DR) input
4
Data terminal ready (ER) output
1
Carrier detect of data channel receive (CD) input
9
Called indicator (CI) input
5
Signal ground or common line (SG)
3
Send data (SD) output
2
Receive data (RD) input
Table 3-5
Specifications of 8-pin RJ45 Connector on 10BASE-T/100BASE-TX Port
Pin No.
Specifications
1
Transmit (+) (TA)
2
Transmit (-) (TB)
3
Receive (+) (RA)
4
Unused (UA)
5
Unused (UB)
6
Receive (-) (RB)
7
Unused (UC)
8
Unused (UD)
Note: Because the interface cable is of twisted-pair type, make TA and TB into a pair, and make RA
and RB into another pair on 10BASE-T; the other pins can be connected to one another without
particular regard to pairing, or can be left open. On 100BASE-TX, additionally make UA and UB into a
pair, and make UC and UD into another pair to cause termination within the RMP.
and RB into another pair on 10BASE-T; the other pins can be connected to one another without
particular regard to pairing, or can be left open. On 100BASE-TX, additionally make UA and UB into a
pair, and make UC and UD into another pair to cause termination within the RMP.
Table 3-3
RMP switch and function of LED indications
Name of switch
and LED
and LED
Switch or LED
Status
Content