2–3
Publication 1395–5.37 – March, 1999
Figure 2.1. CNA Board Components
UMAI
U20
J1
Interface Plug
J5
1 2 3 4
DS1
CA STS
DS2
Channel A STS
DS3
Channel B STS
Firmware
U6
ЛЛ
ЛЛ
ЛЛ
ЛЛ
ЛЛ
ЛЛ
Network
Access
Port
Primary Channel
TE Bus
Redundant Channel
R
T
R
T