363-205-401
DT Turn Up: DLP-500
Issue 7, March 1997
Page 3 of 4
4.
NOTE:
The DC power feed pairs must be connected starting from the top down
on the 10 pair terminal block. A DC protector module (with components
up) must be installed with each of the first four DC power feed pair,
starting from the top (J5) to bottom (J2), on the DC power interface circuit
pack. Remove the plastic guard to install the DC protectors. Only the first
four DC power feed pairs require installation of protectors. The second
four DC power feed pairs share the first four protectors (for example, DC
pairs 1 and 5, 2 and 6).
Verify or install (install protector with the components facing up) DC feed pro-
tector cards on DC power module from 10-pair terminal block as follows:
• For the top DC power feed terminal pair: DC protector card in PROTEC-
TOR MODULE 1.
• For the next DC power feed terminal pair down: DC protector card in
PROTECTOR MODULE 2 jack.
• For the third DC power feed terminal pair: DC protector card in PROTEC-
TOR MODULE 3 jack.
• For the fourth DC power feed terminal pair: DC protector card in PRO-
TECTOR MODULE 4 jack.
• The fifth through eighth DC power feed terminal pairs must be connected
after the first four pairs.
5.
At the 10-pair DC feed terminal block, connect customer DC feed pair starting
at the top and working down, and note the polarity (+ ground, -48 V DC) of the
connection.
6.
At customer premises DC power supply (Jermome -48 V DC source installed
per local options), verify -48 (38 to 63) V DC has been established. Make the
DC power feed pair connection with the same polarity as made in the previous
step. (See 363-205-002,
SLC Series 5 Fiber to the Home User's Manual).
7.
At the pedestal 10-pair DC feed terminal block, verify -48 (38 to 63) V DC
between ground (+ terminal) and (- terminal) as required.
Comment: Feeder voltage trouble must be cleared before proceeding.
