21
A.
ST OPTICAL CONNECTION
1)
Align the key and the bayonet slots on the ST connector with the
keyway and the bayonets of the ST optical port.
2)
Slide the connector ferrule into the port until the key and bayonets
are engaged.
3)
Push the coupling nut forward until it can be turned clockwise to
lock the connector into the port.
B.
FC CONNECTION
1)
Align the key on the FC connector with the key slot on the FC port.
2)
Slide the connector ferrule into the port while the key engages the
slot.
3)
Push the coupling nut forward until it can be turned clockwise to
thread the connector onto the port.
Push the coupling nut forward until it can be turned clockwise to lock the connector into the port.
Push the coupling nut forward until it can be turned clockwise to lock the connector into the port.
2.6.2
SPECIFIC OPTICAL CABLING
Refer to the architecture diagrams, Figures 3, 4, and 5, for help in defining the optical cabling hookup.
Note that in Local Daisy Chain mode the TX1/RX1 port always connect to the fiber going toward the
master controller. The TX2/RX2 port is always connected to the fiber going towards the trunk and
branch ends. If the unit is in master mode or either fault tolerant mode the TX1/RX1 port and TX2/RX2
ports are equals.
2.7 Electrical Cabling
2.7.1
RS232 Connections
Connect both the master controller CPU and each local terminal's RS232 com port via the DB25S
RS232 port on the model 9525AY modem. The only required connections between the terminal
equipment and the modem are pins 2 (Data Input), 3 (Data Output), and 7 (Signal Return/Common).
On the modem end, however, pin 4 (RTS) must be in a high (TRUE) state in order to be able to
transmit the data (input on pin 2) via the fiber. It may be held high by connecting it to pin 8, the CD
output. In this case the RS232 side anti-stream function must be disabled (TIMEOUT switches # 1, 2,
and 3 down). If the terminal equipment requires a high (True) CTS input in order to transmit data,
connect CTS input of the terminal equipment to pin 8 (CD) of the modem. CD is always high.
Summary of Contents for 9525AY
Page 2: ......
Page 8: ...8 FIGURE 1 9525AY DIMENSIONS ...
Page 10: ...10 FIGURE 3 MULTIPLE DAISY CHAIN TRUNKS WITH ONE MASTER CONTROLLER ...
Page 12: ...12 FIGURE 4 FAULT TOLERANT RING WITH DAISY CHAIN BRANCHES ...
Page 25: ......
