Toshiba CTX28 Cabinet AC Power Considerations, Local Electrical Code Cabinets, Local Cabinets

Strata CTX670 Installation

Install AC Power Components

Cabinet AC Power Considerations

The CTX670 power supply works with either 120VAC, 208VAC or 240VAC. CTX670 only requires 120VAC (up to three cabinets if one AC cord is allowed or five cabinets if two AC cords are allowed – see below).

If the system has more then five cabinets, 208VAC or 240AVC is required for the primary AC power source. 208VAC or 240VAC can always be optionally used for systems with five or less cabinets for future growth or, if the electrical code requires.

To determine AC power requirements, you need to check local electrical code requirements for 120VAC, 208VAC or 240VAC primary power. Some electrical codes stipulate that:

•208VAC or 240VAC is required for telephones systems

•Only one electrical cord can connect to the telephone system.

•Only two electrical cords can connect to the telephone system.

•No electrical cord can connect to the telephone system – must use conduit wiring installed by a certified electrician (example: when system is floor mounted).

Cabinet AC Power Component Requirements for Wall Mounted Systems

Tables 4-2and 4-3show the cabinet parts required to distribute AC power for various configurations of the CTX670 cabinets. Figures 4-14~4-17show how to install these parts.

Table 4-2 Wall Mount Cabinet Power Component Requirements for 120VAC Primary Power

Local Electrical Code				Cabinets
	1	2	3	4	5	6	7
Allows only one 120VAC	0 RPSB2	1 RPSB2	1 RPSB2	N/A	N/A	N/A	N/A
power cord from system
Allows two 120VAC power	0 RPSB2	0 RPSB2	1 RPSB2	1 RPSB2	2 RPSB2	N/A	N/A
cords from system

●One dedicated, isolated, 20 amp. AC circuit breaker with dual outlets is required.

●N/A= If the system contains more than three cabinets and if the local code allows only one AC cord, the system requires a BCCB120 conduit box wired by a certified electrician when using 120VAC as primary power. Otherwise, 208VAC or 240VAC should be used as the primary power source (see cabinet power options listed below).

Table 4-3 Wall Mount Cabinet Power Component Requirements for 208VAC or 240VAC Primary Power

Local				Cabinets
Electrical
Code	1	2	3	4	5	6	7
Allows One
AC power	1 BACL240	1 BPSB240	1 BPSB240	2 BPSB240	2 BPSB240	3 BPSB240	3 BPSB240
cord from		2 BACL240	3 BACL240	4 BACL240	5 BACL240	6 BACL240	7 BACL240
system

Important! The plugs and wall receptacles required by the local electrical code might differ for 208VAC and 240VAC. Thus in some areas of the U.S., the plug used on the Toshiba 240VAC power strip and 240VAC power supply cord (NEMA code 6-20P) can not be used for 208VAC installations. In this case, when using 208VAC, the AC plugs on the BPSB240 power strip cord that connects directly to the 208VAC wall outlet must be changed by a certified electrician per the local electrical code.

4-24 Strata CTX I&M 06/04