Nortel Meridian 1 Option 11C Upgrade Manual page 106

Page 106 of 224
553-3021-250 Standard 7.00
Upgrade an Option 11E with fiber-optic cable to Option 11C
34 In each expansion cabinet, connect the fiber-optic cable to the
fiber receiver card, as shown in Figure 43 on page 107.
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 optical 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 you are using the NTBK78 (A0618443 or A0632902) cable:
a Remove the two protective plugs from the fiber receiver card.
b Connect the cable to the fiber receiver card. Make sure the
V-shaped groove on the cable connector faces in and the
connector seats tightly. See Figure 44 on page 108. The
marking (if there is one) on the connector is not visible when
you make the connection correctly.
— If you are using glass fiber-optic cable:
a Remove the protective plug from the fiber receiver card.
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 fiber receiver
card.
c Lock the connector in position by turning it a half turn
clockwise. See Figure 45 on page 109.
d Repeat steps a to c for the second fiber-optic connection
When connected, wind the excess fiber-optic cable around the spool
on the fiber receiver card. Leave enough slack to insert and remove
the fiber receiver card from its slot.
April 2000
WARNING