Toshiba Strata DK 280 Installation Manual page 149

Table 4-16
RCOU Controls, Indicators, and Interfacc
Connectors
Type of Component Description Control/indicator/Connector
(Figure 4-23)
CO Line Circuit 1 Indicator (1)
r-
Red LED Lights to indicate line circuit 1 is in
operation. (Trunk indicator will not light
unless RCOU is connected to a CO line).
Red LED
Lights to indicate line circuit 2 is in
operation. (Trunk indicator will not light
unless RCOU is connected to a CO line).
CO Line Circuit 2 Indicator (2)
CO Line Circuit 3 Indicator (3)
#
Red LED Lights to indicate line circuit 3 is in
operation. (Trunk indicator will not light
unless RCOU is connected to a CO line).
Lights to indicate line circuit 4 is in
operation. (Trunk indicator will not light
unless RCOU is connected to a CO line).
Interface connector for CO line circuits 1 and 2.
Red LED
CO Line Circuit 4 Indicator (4)
1 JlC onnector
Modular connector
Modular connector Interface connector for CO.line circuits 3 and 4.
Enables -3dB signal level drop for CO line
circuit 1.
2-position slide switch
2-position slide switch
I
PAD Switch SW201
Enables -3dB signal level drop for CO line
circuit 2.
2-position slide switch
Enables -3dB signal level drop for CO line
circuit 3.
PAD Switch SW301
PAD Switch SW401
RCOS Connector Pl 1
RCOS Connector P12
2-position slide switch
1 O-pin male connector
Enables -3dB signal level drop for CO line
circuit 4.
Interface connector for RCOS 4-circuit
loop start CO line unit.
Interface connector for RCOS 4-circuit
loop start CO line unit
Interface connector for RCOS 4-circuit
loop start CO line unit.
Interface connector for RCOS 4-circuit
loop start CO line unit.
~ 1 O-pin male connector
DKO:
I
RCOS Connector P13
1 O-pin male connector
b-pin male connector
I
RCOS Connector P14
Note:
The RCOS decibel (db) PAD switches
(SW501, SW601, SW701, and SW801) and
the RCOlJ db PAD switches (SWlOl, SW.201,
SW301, and SW401) control excessive
loudness resulting from close proximity to a
Central Office or PBX telephone office by
providing a -3db signal level drop to, or from,
the PBX or Central Office when set to the 3
position. Switches are factory-set to the 0
(Odb signal level drop) position.
2. If the DK280 cabinets (DKSUB280 and
DKSUE280 or DKSUE424) are within one mile of
the PBX or Central Office, set the RCOS db PAD
switches SW501, SW601, SW701, and SW801 to
the 3 (-3db signal level drop) position. Set the
RCOU db PAD switches to the 3 position also.
Note:
RCOU male connectors Pll, Pl2, P13, and
P14 are positioned to allow installation of the
RCOS only in the proper position.
3. Mate the RCOS female connectors Jll, J12, J13,
and J14 (Figure 4-24) to the RCOU male
January 1996 4-33