A/B Ports - Aastra OpenCom 100 Mounting And Commissioning User Manual

Installation
The maximum permissible length of the twin-wire cable on a U
This line may only be laid inside buildings.
The maximum permissible length of the twin-wire cable on a U
interface card is 1,000 m when 0.6 mm cable (with twisted pairs) is used (these
interface cards are available for an OpenCom 130 / 150).
The power consumption of each U
U /RFP with 1 U
pn
S int
0
2a 2b 1a 1b
1 2 3 4 5 6 7 8
RFP with 2 U
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Pin assignment of the S

3.10.3 a/b Ports

The a/b ports are for operating analogue devices (e.g. a fax machine, modem or
telephone). The maximum permissible length of the cable is 1,000 m when twin-
wire 0.6 mm cable (with twisted pairs) is used.
Doorstation equipment can be activated on an a/b1 port (OpenCom 130,
OpenCom 131). In this case, an electronic switch enables the low-frequency
voltage to be separated from the feed.
Tip:
pn
pn
pn
and U ports
0 pn
It is possible to operate analogue trunk lines with an addi-
tional interface card. Further explanations regarding this in-
terface card can be found in the "M100-AT4 Interface Card"
manual.
Port Assignment, Termination, Cable Lengths
port is approx. 3 W.
port is 500 m.
pn
port of an
pn
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