Apc SILCON 990-4053 User Manual download pdf (Page 58)

58 Installation Guide APC Silcon 480kW 400V UPS

990-4053

Options/Accessories

6.4.1.1 Connections Without Converter

Connect a 25-pin female Sub-D and a 9-pin male Sub-D connector with a 3-wire shielded cable,

as shown in the table below. Connect shield at one end only.

Pin Connection for Interconnection Cable (without converter):

6.4.1.2 Connections With Converter

Connections to be made according to converter manual.

Pinconnection example only:

The ME800A-R2 must be set up as a DCE with no RTS/DTR control.

The interconnection cable between the two ME800A-R2 boxes is a 4-wire twisted pair

telephone cable with or without shield. The shield improves noise immunity but reduces

maximum communication distance.

Host (DTE) Remote Display (DTE)

25-pin female

pin No.

9-pin male

pin No.

2 (TXD) 2 (RXD)

3 (RXD) 3 (TXD)

7 (GND) 5 (GND)

House (shield) No Connection

Pin Connections for cable

from host to ME800A-R2.

Pin connection for cable from

ME800A-R2 to Remote Display

Host

(DTE)

ME800A-R2

(DCE)

ME800A-R2

(DCE)

Remote Display

(DTE)

25-pin female

pin No.

25-pin male

pin No.

25-pin male

pin No.

9-pin male

pin No.

2 (TXD) 3 3 2 (RXD)

3 (RXD) 2 2 3 (TXD)

7 (GND) 7 7 5 (GND)

House (Shield) No connection No connection House (Shield)

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 75 76

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Apc SILCON 990-4053 User Manual Page 58

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