NEC UX5000 - Installing Single Line Telephones; Single Line Extension Cabling (Figure 3-5); Installing a Single Line Telephone (Figure 3-5)

Chapter 3 - Installing Extensions and Trunks
Chapter 3 3 - 7
SECTION 3-6
INSTALLING SINGLE LINE TELEPHONES
3.6.1 Single Line Extension Cabling (Figure 3-5)
Each single line extension requires one-pair twisted station cable from the MDF to the modular jack. A
maximum of 24 2-wire extensions can be installed per 50-pin 66 block.
To connect station cabling:
1. Punch down one pair 24 AWG station cable for each single line telephone to a cross-connect block.
2. Punch down cross-connect from the clips on the cross-connect block to their corresponding clips on the
extension (B) block.
3. Connect the extension (B) block's 25-pair cable to the corresponding RJ-61 connector on the blade.
4. Install bridging clips on the extension (B) block.
3.6.2 Installing a Single Line Telephone (Figure 3-5)
To install a single line telephone:
1. Install a modular jack for each single line telephone. The modular jack should be within six feet of the
phone.
2. For each extension, run one-pair 24 AWG station cable from the cross-connect block to a modular jack.
3. Terminate the extension leads to GRN/RED of the modular jack. Terminate the unused leads to the jack.
Figure 3-5: INSTALLING A SINGLE LINE TELEPHONE
625
Modular
Jack
25-pair
cable to
extension
blade
BLK
YEL
RED
GRN
BLU-WHT
WHT-BLU
Cross
Connect
Block
"B"
Block