6F2S1916 (0.
5
)
GIF200
- 3 -
treatment or by exceeding the minimum bend radius of the fiber cable.
Connection in G.703 at CN1 (D-sub) connector
The CN1 (D-sub 25 pin / DB-25) connector is used for connection with the MUX over
twist-pair cables, as shown in Figure 2.3-1 and Table 2.3-1.
6
7
8
10
Ta
Tb
Ra
Rb
Sa
Sb
Transmit (Tx)
Receive (Rx)
Signal Timing (CLK)
GIF200
MUX
(Required only in clauses
1.2.3 and 1.2.2 of G.703)
25
24
23
22
21
20
D-sub
CN1/G703
Figure 2.3-1 Signals between GIF200 and MUX
Table 2.3-1 Electrical connection with MUX
Circuits
Signal names
Signal type
Pin numbers
Transmit (TX)
Ta
ITU-T G.703
25
Tb
24
Timing (CLK)
Sa
21
Sb
20
Receive (RX)
Ra
23
Rb
22
DC power at TB1 connector
The TB1 connector is used for DC power supply. Note that terminal pin numbers 3 and 4 are
shorten for frame ground.
Table 2.4-1 CN1 connector on GIF200 unit
Signal name
Signal type
Pin numbers
P
DC rated voltage
24/48/110/ 220Vdc
1
G
2
FG
Frame ground terminals
3,4, and 5
LED indicators
Eight (8) LEDs are provided to check communication status between the MUX and the
GRL200 IED, as shown in Figure 2.5-1. Table 2.5-1 details the color and functions associated
