AT&T SB67030 Administrator's Manual page 269

Table 6. Technical Specifications (Continued)
Feature
Power Requirements
RJ–45 Ethernet
Network Jack
PSTN Gateway
Telephone Jacks
[T1] T1 Jack
Gateway BYPASS
LAN Cable
Appendixes
Synapse Administrator's Guide
Specification
PSTN Gateway: 5.1V DC @ 1700mA
T1 Gateway and ATA: 12V @ 18 Watts
Deskset: 5.1V DC @ 1700mA
Cordless Handset, Cordless Headset chargers: 6V DC @ 200mA
Cordless Handset: 2.4V 550mA Ni–MH battery
Cordless Headset: 3.7V 240mAH battery
(10Base–T/100Base–Tx) with auto MDI/MDIX switching
1–4 and BYPASS (FXO ports) use traditional 2–conductor wiring
RJ48C jack as shown below and in Figure 177.
Pin1: Pair R, RX-Ring Signal
Pin2: Pair T, RX-Tip Signal
Pin4: Pair R1, TX-Ring Signal
Pin5: Pair T1, TX-Tip Signal
26mA loop current; REN 5; 100m max loop length
Cat.-5 standard cable, except the T1 Gateway, which uses a standard Cat.-6 LAN cable
Figure 177. T1 Cable RJ48C Connector and
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Pin Numbers (End View)