NETBuilder II Fiber Distributed Data Interface (FDDI) Module Installation Guide
Multi-mode accepts multi-mode duplex fiber
of
62.5/125um. An 11-db optical budget size allows cables up to 2km
long.
Interface speed: 25MHz
Controller speed: 12.5MHz
Clocks: 25MHz symbol clock rate, 12.5MHz
byte
clock rate
NOTE: In a 4 or 8 slot chassis, the MAC board is installed ABOVE the PHY board.
NOTE: In 4 or 8 slot chassis, the MAC board MUST be installed first.
NOTE: Both single- and
multi-mode
FDDI modules need version 7.2 or later of the NETBuilder Family
Bridge/Router
software.
| CR3 A STATUS LED
CR4 B STATUS LED CR5 MAC STATUS LED J1 Optical Bypass Port J2 Backplane connector to NETBuilder II PTC1 Resettable PTC fuse U2 LSI L1A9316 CMPI+ 40-0146-000 U5 ATMEL AT28C64B-20JC |
U6 Motorola MC68838KBC
U9,11 Cypress CY7C421-25VC U10 Motorola MC68840FE25B05 U12 ALTERA 39-0048-000 U15 ACTEL A1020B-2 39-0050-001 U16 ALTERA 39-0047-002 U17 ALTERA 39-0049-002 0 |
FDDI MAC+ Bottom
U501-508 Eight MUSIC MU9C1480-12DC 1024 x 64-bit LANCAM
NOTE:The MAC board contains active components on the bottom side that may come into contact with the board below it.
NOTE: Do NOT remove the PHY
and
MAC boards at exactly the same time.
| J1 Backplane
connector to NETBuilder II
RP1-9 Dale SOMC 1600 -S41 U1 AMD PALCE U2 AMD PALCE U3 LSI L1A6189 CMPI 40-0031-000 U4 TI 74ALS373A U5 ATMEL AT28C64B 20JC U6-7 Motorola ACT273 |
U9 AMD AM79C864AKC
U10 AMD AM79C864AKC U13 Motorola XC68836FNB U14 Motorola XC68836FNB XCVR1 FSC Transceiver 269028-5 XCVR2 FSC Transceiver 269028-5 Y2 20.8333MHz xtal Y3 20.8333MHz xtal |
U9, 10 Am79C864A
Physical Layer Controller With Scrambler (PLC-S)
U13, 14
Motorola XC68836FNB
FDDI Clock Generator
FSC Transceiver 269028-5 marked 155 Mb/s, 1300nm