User Manual

AS8100 Sitespan User Guide Version 3.7

605-0000-426

GSI 009

Draft Issue 6.0. Date 4/4/00

Page 32 of 305

25 Way Male Connector

at Modem Shelf Signal

Pin to Pin 25 / 9way Female

Connector at PC Signal

Earth (PE) 1 to 1 Earth

Transmit TxD 2 to 3 Receive

Receive 3 to 2 Transmit

Return (0v) 7 to 7 (25way)

7 to 5 (9way)

Return

Table 3 RS232 pin Connections

2. The RS232 connector can be found on the modem backplane, labelled 'PL5'. The RS-

232 cable(s) enter the ACT from the top and are tied-in down the right-hand side cable

duct. On Release 4 installations the Sitespan RS232 connector is located on the right

hand side of the shelf (see Figure 7). On release 3 shelves the Sitespan connects directly

to the modem shelf backplane (see Figure 8)

Modem Shelf

2 Mbit

Cables

Sitespan

Figure 7. Sitespan Connection to a Release 4 Modem Shelf.