Toshiba GRL100-701B Instruction Manual page 471

2. Optical Interface Unit (Option)
Type:
Communication interface box
Model:
For X21 (*)
For CCITT-G703-1.2.1
For CCITT-G703-1.2.2 or 1.2.3
For X21
DC auxiliary power supply:
DC 48V/54V/60V
DC 110V/125V
DC 220V/250V
Note (*): With outer case. For details, see the G1IF1 instruction manual.
G1IF1
01
02
03
04
01
02
03
 470 
6 F 2 S 0 8 5 0
− −
G1IF1