3Com 52x, 32x manual Modem Cable, UTP Connector and Cable

2-6CHAPTER 2: OVERVIEW

Modem Cable

Figure 2-5 shows the pinouts for a 9-pin female to 25-pin male modem cable. A straight-through-type cable may be used.

To Console port								To modem
5	4	3	2	1	1	2	3	4	5	6	7	8	9	10	11 12		13
	9	8	7	6	14	15	16	17	18	19	20	21	22 23		24	25
9-pin female connector					25-pin male connector
	Name			Abbr Pin	Pin		Abbr				Name

Transmit Data	TxD	3
Receive Data	RxD	2
Request to Send	RTS	7
Carrier Detect	CD	1
Clear to Send	CTS	8
Signal Ground	GND	5
Data Set Ready	DSR	6
Data Terminal Ready	DTR	4

3 2 4 8 5 7 6 20

RxD	Receive Data
TxD	Transmit Data
RTS	Request to Send
CD	Carrier Detect
CTS	Clear to Send
GND	Signal Ground
DSR	Data Set Ready
DTR	Data Terminal Ready

Figure 2-59-pin to 25-pin Modem Cable (Straight-Through-Type)

LAN Connectors and The bridge/router has two token ring connectors. Only one connector Cables can be used at one time.

UTP Connector and Cable

The following figure shows the pinouts of the UTP connector (RJ-45).

The connector bodies connect the cable shield to chassis ground.

UTP

12345678

3TX

4RX

5RX

6 TX

RJ-45 female (shielded)

Table 2-2 lists cable types, multistation access units (MAUs), and emissions classes compatible with the UTP connector.