Nortel Meridian 1 Option 11C Upgrade Manual page 96

Page 96 of 224 Upgrade an Option 11E with fiber-optic cable to Option 11C
553-3021-250 Standard 7.00
16 Connect each fiber-optic cable to the connector on the Fiber
Expansion Daughterboard, as shown in Figure 39 on page 97.
Use of the fiber-optic interface product in Option 11C is considered
safe. However, as a precaution, do not look directly at the optical port
or the end of fiber-optic cable. The cable or port can cause eye
exposure beyond the limits of Maximum Permissible Exposure
recommended in some areas. For example, this condition can occur
during cable testing or under light magnification. Do not remove
protective caps or plugs until you are ready to connect the cable.
Use one of the following methods:
— If using the NTBK78 (A0618443 or A0632902) cable:
a Remove the two protective plugs from the Fiber Expansion
Daughterboard.
b Connect the cable to the Fiber Expansion Daughterboard.
Make sure the V-shaped groove on the cable connector faces
outward and the connector seats completely. The marking (if
there is one) on the connector is not visible when you make the
connection correctly. See Figure 40 on page 98.
— If using glass fiber-optic cable:
a Remove the protective plug from the Fiber Expansion
Daughterboard. Remove the protective cap from the
corresponding plug (Tx or Rx) on the glass fiber-optic cable.
b Insert the plug in its assigned connector on the daughterboard.
c Lock the connector in position by turning it a half turn
clockwise. See Figure 41 on page 99.
d Repeat these steps for the second fiber-optic connection.
— If using a glass fiber extension:
Connect the extension from the daughterboard to the main
fiber-optic cable. Make sure you do not interchange the transmit
and receive leads.
April 2000
WARNING