4 verify cooling fan air flow direction, 5 verify voltages on power distribution cable, 6 system test procedure – EFJohnson 3000 SERIES User Manual
Page 47: Power distribution cable voltages -21, Pcm cable location -21

SYSTEM RACK
4-21
4.4.4 VERIFY COOLING FAN AIR FLOW
DIRECTION
1. Connect the power cables to a 110V AC source.
2. Connect the Plus lead of the Fan Cable to Bus Bar
D1-16.
3. Verify both power supplies are turned OFF.
(Power Supply "A", is located on the left side at the
bottom of the rack. Power Supply "B" is located on
the right side at the bottom of the rack.)
4. Install both power supplies.
5. Turn Power Supply "A" on.
6. Verify that the Power On indicator is "ON" for
Power Supply "A".
7. Verify that the air flow from the fan is to the outside.
4.4.5 VERIFY VOLTAGES ON POWER DISTRI-
BUTION CABLE
1. Verify voltages in Table 4-18 for the Power Termi-
nation Cables for Shelves 1-6.
2. Turn Power Supply "A" OFF.
4.4.6 SYSTEM TEST PROCEDURE
The following test procedure is for the 3000
Series Switch with:
8 - Power Termination Modules (PTMs)
1 - Network Interface Module (NetNIM)
1 - Voice Termination Module (VTM).
1. Install all Power Termination Cables onto the back-
plane at mating connector P33.
2. Unplug all modules from the backplane card slots
(leave unplugged modules in the card guides).
3. Verify the installation of the PCM W1 and W3
cables as shown in Table 4-19 (see Figure 4-7).
Table 4-18 POWER DISTRIBUTION CABLE
VOLTAGES
Pin
Color
1
Green
-48V ±2V
2
Not Used
None
3
Black
Common
4
White
-12V ±1V
5
Not Used
None
6
Black
Common
7
Red
+5V +0.5/-0.1V
8
Not Used
+12V ±1V
9
Black
Common
10
Red
+5V +0.5/-0.1V
11
Blue
+12V ±1V
12
Black
Common
13
Red
+5V +0.5/-0.1V
14
Blue
+12V ±1V
15
Black
Common
Table 4-19 PCM CABLE LOCATION
From
To
Shelf 1 - J25
Shelf 1 - J5
Shelf 1 - J6
Shelf 1 - J23
Shelf 1 - J24
Shelf 1 - J26
Shelf 2 - J3
Shelf 2 - J4
Shelf 2 - J25
Shelf 2 - J26
Shelf 2 - J5
Shelf 2 - J6
Shelf 2 - J23
Shelf 2 - J24
Shelf 3 - J3
Shelf 3 - J4
Shelf 3 - J25
Shelf 3 - J26
Shelf 3 - J5
Shelf 3 - J6
Shelf 3 - J23
Shelf 3 - J24
Shelf 4 - J3
Shelf 4 - J4
Shelf 4 - J25
Shelf 4 - J26
Shelf 4 - J5
Shelf 4 - J6
Shelf 4 - J23
Shelf 4 - J24
Shelf 5 - J3
Shelf 5 - J4
Shelf 5 - J25
Shelf 5 - J26
Shelf 5 - J5
Shelf 5 - J6
Shelf 5 - J23
Shelf 5 - J24
Shelf 6 - J3
Shelf 6 - J4
Shelf 6 - J25
Shelf 6 - J26
Shelf 6 - J5
Shelf 6 - J6
Shelf 6 - J23
Shelf 6 - J24
Shelf 7 - J3
Shelf 7 - J4
Shelf 7 - J25
Shelf 7 - J26
Shelf 7 - J5
Shelf 7 - J6
Shelf 7 - J23
Shelf 7 - J24
Shelf 8 - J3
Shelf 8 - J4
Shelf 8 - J25
Shelf 8 - J26